Holosun 507c vs 507k

We know Holosun for quality but affordable sights and some other micro red dot sights by them are Holosun 507k x2, Holosun 407k, and Holosun 507c x2. The 507k has a multiple reticle system: a 2 MOA dot, a 2 MOA dot with a 32 MOA circle, and a 32 MOA circle only. This versatile selection caters to different shooting scenarios. One of the ...

Holosun 507c vs 507k. 507Comp-GR handgun sight features a large 1.1” x 0.87” objective lens for enhanced shooting performance and Holosun’s new Competition Reticle System (CRS) with Holosun’s 540nm Green Super LED and up to 50k hour battery life with a 1632 cell. CRS is an enhanced multi-reticle system with four components including a precision 2MOA dot, …

Summary. The Holosun 507K and 507C are two popular pistol optics. They have similar features, but the 507C is larger and has a solar panel. Both have a long …

If you have a natural fiber sweater, you’ve probably noticed it occasionally sheds or pills. To prevent this from happening, try freezing it. If you have a natural fiber sweater, y...Purchased Holosun SCS for Glock 20 gen 5 MOS. Holosun mounted by gun store using screws that accompanied the sight. No lock tight was added because blue was already on the screws and a torque tool was used to ensure proper tightening. I watched the installation. Shot at the range firing PMC 10MM, 200 grain FMJ-TC.Purchased Holosun SCS for Glock 20 gen 5 MOS. Holosun mounted by gun store using screws that accompanied the sight. No lock tight was added because blue was already on the screws and a torque tool was used to ensure proper tightening. I watched the installation. Shot at the range firing PMC 10MM, 200 grain FMJ-TC.The Holosun 507 Comp has a window size of 1.1 inches x .087 inches, with overall dimensions being 1.8in x 1.3in x 1.3in. To compare, the Trijicon SRO is one of the most used red dot optics in the shooting sports world. Its sight window is .98 inches x .89 inches with overall dimensions of 2.2 in x 1.3 in x 1.4 in.Nov 2, 2023 · The main differences between the Holosun 507k and Trijicon RMRcc include: Reticle options: The Holosun 507k offers a choice of a dot or circle-dot reticle, whereas the RMRcc only has a single dot reticle option. Window size: The 507k has a slightly larger window compared to the RMRcc, providing a broader field of view. 1 oz. 1 oz. Rating: 4.5/5. 5/5. The main difference between them is the circle dot reticle that the 507c has built into it. Also, you may notice that the 32 MOA circle dot provides much better target accuracy than the Holosun 407c. Another minor difference is the multi-reticle options that the 507c possesses, which gives it an edge over the ...The Holosun HS507C-X2-ACSS is a new generation of pistol red dot sight packed full of features like the multiple reticle system, solar failsafe, and shake awake technology to ensure your reflex sight is always operational when you need it.

Reticle. The reticle is a significant factor when considering precision. The Leupold DeltaPoint Pro has a 2.5 MOA Dot and a more extensive 7.5 MOA triangle, more suitable for wide shotguns and rifles. On the other hand, the Holosun 507C, with its 2 MOA dot and 32 MOA Circle, offers superb versatility for various shooting ranges.The HS507K X2 is an open reflex optical sight designed for subcompact pistol applications. The HS507K X2 improves on the previous version by adding Lock Mode which was first introduced in our 2018 LEM pistol optic models. Lock Mode, when activated, locks the buttons preventing inadvertent setting changes. Additional features include Holosun’s ...Nov 26, 2021 · Holosun 507K: 507k is a smaller sight through and through. You can see and feel how small this is. Compared to 507C, it’s much smaller. Overall dimensions are 1.6×0.98×0.95 inches. Now, that’s a small sight. It won’t take much space on top of the rail. You probably won’t even notice it’s there while not using the gun. I go over all the pros and cons of each Holosun Red Dot:507C 407C507K407KAlso talk about the ACSS Vulcan reticle.Link to the 507C ACSS Vulcan Red Dot: https...The holosun 507c is a compact red dot sight, taking measurements 1.78 x 1.15 x 1.15 inches. The Holosun 507c optic weighs only 1.5 ounces, which, in my opinion, is not a lot. No case of comprising, Holosun 507c is actually compact and lightweight. Trijicon SRO. The Trijicon SRO is a compact sight with measurements of 2.2 x 1.3 x 1.4 inches.Taking a look at the Holosun 507k, YouTube removed my original video at 235,000+ views and it received great feedback so I had to re-make it for the people. ...Sales resistance is every bit as frustrating as it is natural. Take a look at what top-performing salespeople know about overcoming pushback and reluctance from prospects. Trusted ...

The company behind the dive site has been posting photos and videos on Instagram this week showing its centerpiece Boeing 747 being towed to a new, watery home on the floor of the ...The Holosun 507C is an open reflex sight designed for full-sized pistols, boasting advanced features like Shake Awake and Solar Failsafe. Dimensions and Features: Item Dimensions: 5 x 4 x 4 inches. Item Weight: 1.44 ounces. Material: 7075 T6 Aluminum. Magnification: 1x. Battery: CR1632.I hope this comparison guide will help you understand the difference between the two red dots here and which one you should prefer. The Holosun 407c and 507c have more similarities than differences. The major difference is the reticle options which the 507c has 3, and the 407c has just 1. Also, the 407c is a few dollars lesser than the 507c.Aug 13, 2023 · Both models have the same IP67 submersion rating, but the 509T is slightly heavier at 1.72 oz compared to the 507C at 1.5 oz. Both optics have a battery life of 50,000 hours with solar backup. Check out these two badass red dot optics. Holosun 507C and 509T. Open emitter vs closed emitter designs. Holosun 507 Comp vs Trijicon SRO vs Viridian RFX 35 vs 508T vs EPS vs 507C vs 407K Video Comparison Cliff Notes on the Holosun 507 Comp, Trijicon SRO, and Viridian RFX 35 The Trijicon SRO is the most expensive, the 507 Comp is also not cheap, but cheaper than the SRO, and the Viridian RFX 35 is the lowest price option - and by far …

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This makes the 507K an ideal choice for firearms like the SIG Sauer P365 or Glock 43X, where maintaining a low profile and not adding unnecessary bulk is crucial. Reticle Options. Both the 507C and 507K offer Holosun’s Multi-Reticle System (MRS), allowing users to switch between a 2 MOA dot, a 32 MOA circle, and a circle-dot reticle.The Holosun 507C in Living Color. The Holosun 507C is a micro red dot sight that weighs 1.5 ounces, is 1.78 inches long, 1.15 inches wide, and 1.15 inches tall without a Picatinny mount. There is an included Picatinny mount that makes it 1.54 inches tall. It uses the same footprint as the Trijicon RMR, so it’s compatible with various risers ...Mar 16, 2024 · I hope this comparison guide will help you understand the difference between the two red dots here and which one you should prefer. The Holosun 407c and 507c have more similarities than differences. The major difference is the reticle options which the 507c has 3, and the 407c has just 1. Also, the 407c is a few dollars lesser than the 507c. The most noticeable difference between the Holosun 507c and 507k lies in their design and size. The 507c is part of Holosun's Classic series, featuring a larger window that …: Get the latest HB Portfolio stock price and detailed information including news, historical charts and realtime prices. Indices Commodities Currencies StocksNeed a Drupal development company in Philadelphia? Read reviews & compare projects by leading Drupal developers. Find a company today! Development Most Popular Emerging Tech Develo...

1 oz. 1 oz. Rating: 4.5/5. 5/5. The main difference between them is the circle dot reticle that the 507c has built into it. Also, you may notice that the 32 MOA circle dot provides much better target accuracy than the Holosun 407c. Another minor difference is the multi-reticle options that the 507c possesses, which gives it an edge over the ...Holosun 407C X2 vs 507C X2 Differences. The 507C X2 has the M.R.S. (Multi Reticle System) and the 407C X2 has a 2 MOA dot ... Have three now, with two 507k’s, one in green and one in red, mounted on a G43 and a S&W .22 mag. Love the 32 MOA circle reticle, but looking forward to the 8 MOA circle on the COMP. 1 2 3.The Holosun 507k is a more compact red dot sight specifically made for subcompact pistols. See 3,000+ New Gun Deals HERE. 3. Are the Holosun 507c and 507k the same size? No, the 507c is larger and better suited for full-size pistols, while the 507k is more compact and ideal for subcompact pistols. 4. Can the Holosun 507c fit on a …This might help a little CZ's with Holosun optics My 75 compact (PCR) with a 507k (same size slide as a P01), 507c on an SP01 and a 507k on the 97bd. I first had the 507c put on the SP01, then the 507k came out and seemed a perfect fit for the Compact model, with almost no side overhang whereas the 507c does overhang the side of the wider SP01 …Holosun is a major name in pistol optics. They offer a range of sights for your pistol, and two of the most common are the Holosun 507k and the 507c. Let's t...Its adaptability in various lighting conditions and rugged build makes it a standout choice. During my Holosun 507C X2 Review. It consistently demonstrated superior clarity and quick target acquisition. Its 32 MOA circle paired with a 2 MOA dot provided a versatile sight picture, ideal for rapid, precise shooting. Pros.If you need to send a confirmation email, these confirmation email template examples will save you time. Be inspired, or even copy and paste. A confirmation email is helpful in man...7.5. Optical Quality. 9. Durability and Build Quality. 9. Weight and Size. 9.5. Battery Life. 9.5. Reticle. 8.5. Ease of Use. 9. Price. Learn How I Test & Score Here. …Jun 2, 2023 · What is the maximum range of the Holosun 507C and 507K? While Holosun recommends you to use them within the 100-yard range. You can squeeze out more than that from them. For red dot sights, tend to have an extremely accurate result in ranges where you wouldn’t necessarily use a pistol. Closing Thoughts. Holosun 507k and 507c both are ...

Holosun has been a formidable competitor in the world of firearm optics. Among some of its most successful and cherished products was the 507C V2, which came out in early 2020. However, fate had different plans for it. Shortly after, Trijicon sued Holosun for infringement. Sometime later, the two competitors announced a settlement, but the

Nov 26, 2021 · Holosun 507K: 507k is a smaller sight through and through. You can see and feel how small this is. Compared to 507C, it’s much smaller. Overall dimensions are 1.6×0.98×0.95 inches. Now, that’s a small sight. It won’t take much space on top of the rail. You probably won’t even notice it’s there while not using the gun. Both models have the same IP67 submersion rating, but the 509T is slightly heavier at 1.72 oz compared to the 507C at 1.5 oz. Both optics have a battery life of 50,000 hours with solar backup. Check out these two badass red dot optics. Holosun 507C and 509T. Open emitter vs closed emitter designs.Jun 22, 2020 · So the 510c weighs 8.3 ounces, which isn’t bad for a full-sized reflex sight, but it’s much heavier than the 1.5 ounces of the 507c…. In addition to that the 507c is shorter than the 510c and sits much lower. It’s clearly a much more compact optic. So in this category the win goes to the Holosun 507c. Read 1,500+ of our recent 5 star reviews here. Hey Freedom Gorillas, today we are going to talk about the Holosun 507C X2 ACSS Vulcan. This is a co-branded optic between Holosun and Primary arms which features the award winning ACSS Vulcan reticle which is a 250 MOA outer ring and a 10 MOA center chevron. We understand that not …1 oz. 1 oz. Rating: 4.5/5. 5/5. The main difference between them is the circle dot reticle that the 507c has built into it. Also, you may notice that the 32 MOA circle dot provides much better target accuracy than the Holosun 407c. Another minor difference is the multi-reticle options that the 507c possesses, which gives it an edge over the ...The most noticeable difference between the Holosun 507c and 507k lies in their design and size. The 507c is part of Holosun's Classic series, featuring a larger window that …Size and Weight Comparison: Holosun 507k vs 507c. When adding any accessory to your firearm, size and weight should be considered to find the right balance for your needs. Here’s how the Holosun 507c and 507k compare in terms of their dimensions and portability. Feature: Holosun 507c: Holosun 507k: Length : 1.78″ 1.6″ Width : 1.24″ …

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The Holosun 507k X2 is the flagship of the small offering from Holosun. The 507k comes with 3 reticle choices fueled by a single CR1632 accessed by side doo...Both models have the same IP67 submersion rating, but the 509T is slightly heavier at 1.72 oz compared to the 507C at 1.5 oz. Both optics have a battery life of 50,000 hours with solar backup. Check out these two badass red dot optics. Holosun 507C and 509T. Open emitter vs closed emitter designs.A practical guide to the world's best red dot sights, comparing the Holosun 507k and 507c in six categories: durability, lens clarity, battery life, extra accessories, price and extra features. Learn the main similarities and differences between these two pistol mounted optics and find out which one is right for you. See more Purchased Holosun SCS for Glock 20 gen 5 MOS. Holosun mounted by gun store using screws that accompanied the sight. No lock tight was added because blue was already on the screws and a torque tool was used to ensure proper tightening. I watched the installation. Shot at the range firing PMC 10MM, 200 grain FMJ-TC. Aug 23, 2022 · To compare this to the other popular red dots in the Holosun line up, the EPS is the closed-emitter version of the 507c, and the EPS Carry is the closed emitter version of the 507k. CHECK OUT ALL ... Buy with confidence. Read dozens of our recent 5 star reviews here. Hey Freedom Gorillas, today we are going to cover the Holosun 507K X2 ACSS Vulcan. This is a co-branded open reflex micro pistol optic between Holosun and Primary Arms. It features the ACSS Vulcan reticle which is a large 230 MOA dotted outer ring and a 3 MOA center …Thanks!! This might help a little CZ's with Holosun optics My 75 compact (PCR) with a 507k (same size slide as a P01), 507c on an SP01 and a 507k on the 97bd. I first had the 507c put on the SP01, then the 507k came out and seemed a perfect fit for the Compact model, with almost no side overhang whereas the 507c does overhang the side of the ...check out the review of the Holosun 407c and 507c red dot sights. maybe one of the best micro red dots on the market. Affiliate LinksHolosun 507c X2 http://...Mar 4, 2024 · Holosun 507K. Weighing in at 1 ounce, the Holosun 507k isn’t far behind. Although it’s heavier than the Swampfox Sentinel by 0.38 ounces, the difference is hardly noticeable for most shooters. Its low weight means that the optic won’t drastically impact your ability to hold and aim your weapon. The one-ounce weight still falls in the ... ….

Holosun 507C X2 vs 507K X2 Battery Life. The Holosun 507C X2 and the 507K X2 have the same battery life. They are both rated at around 20,000 hours of battery life using the MRS reticle on setting 6. If you were to use the 2 MOA dot only, the battery life would be 50,000 hours. Holosun 507C X2 vs 507K X2 Similarities. They both have shake awakeHello today we are going to show you the size comparison between the Holosun C series optics and the K series optics. This will cover the 407C/507C Red & Green and the 407K/507K Red & Green. Other than the size the main differences between the C vs K series are as follows: C series has a solar panel and auto br.Holosun optics are known for their durability and use of high quality materials. The optics from the 507 series are made with 7075 T6 aluminum, which make them lightweight and sturdy. Additionally, the optics for both 507K and the 507K X2 are fog and waterproof, with an IP67 rating. The sights have also been tested for use in harsh temperatures ...Size & Weight. Image Quality. Ease of Use. Battery Life. Durability. Eye Relief. This information will provide both the similarities as well as the major differences …Battery Life and Power-Saving Features: The Holosun 507c and 507k both boast impressive battery longevity, a hallmark of Holosun’s commitment to reliability. The …Hey Freedom Gorillas today we are going to explain the similarities and differences between the Holosun 507C X2 ACSS Vulcan and the 507C X2. We know it can be difficult to understand the differences when you don’t have them both in your hands. If you aren’t familiar with the ACSS Vulcan system, it’s essentially an aim.The Holosun 507K X2 features the same 2 MOA dot + 32 MOA ring just like the Holosun 507C X2. It's big enough for shooters to pick up and especially for sub compact pistols with 1911 style grip angle. 32 MOA is definitely big enough to acquire even if the center dot is completely off center. The shooter can still see part of the ring as a ... Holosun 507c vs 507k, We know Holosun for quality but affordable sights and some other micro red dot sights by them are Holosun 507k x2, Holosun 407k, and Holosun 507c x2. The 507k has a multiple reticle system: a 2 MOA dot, a 2 MOA dot with a 32 MOA circle, and a 32 MOA circle only. This versatile selection caters to different shooting scenarios. One of the ..., The Holosun 507k x2 packs impressive capabilities into its micro footprint. At just 1.5 x 1.6 x 1.2 inches and weighing only 1.6 ounces, it’s built to complement slim pistols without adding bulk. HOLOSUN HE507K-GR X2 Multi-Reticle Green 2 MOA Dot & 32 MOA Circle Open Reflex Pistol Sight – Durable Shake-Awake. 4.7., Hey Freedom Gorillas, today we are going to cover the Holosun 507K X2 ACSS Vulcan. This is a co-branded open reflex micro pistol optic between Holosun and Primary Arms. It features the ACSS Vulcan reticle which is a large 230 MOA dotted outer ring and a 3 MOA center dot. ... RMR Low Picatinny Mount - RMR Footprint - Holosun …, We'll cover the Trijicon RMR vs the Holosun RMR footprint lineup. Seeing if the $200+ is worth spending on the RMR or notBlog article here https://freedomgor..., Thanks!! This might help a little CZ's with Holosun optics My 75 compact (PCR) with a 507k (same size slide as a P01), 507c on an SP01 and a 507k on the 97bd. I first had the 507c put on the SP01, then the 507k came out and seemed a perfect fit for the Compact model, with almost no side overhang whereas the 507c does overhang the side of the ..., Apr 20, 2021 · HOLOSUN GREEN DOT SIGHT - The HE507K-GR X2 is an open reflex optical sight designed for subcompact pistol applications; It features Lock Mode that locks the buttons preventing inadvertent setting changes; This handgun sight is a direct for P365X/XL, and requires an adapter plate for slides with a four-boss interface; Multi Tool, Lens Cloth, and ... , Romeo Zero is extremely lightweight and won’t add much weight to the gun it is mounted on, weighing only about 0.4 ounces. Holosun 507k x2. A small and light red dot sight made specifically for handguns is the Holosun 507k x2. The 507k x2 is 0.95 inches tall, 0.98 inches wide, and 1.6 inches long in terms of dimensions., Hey Freedom Gorillas, today we are going to talk about the Holosun 507C X2 ACSS Vulcan. This is a co-branded optic between Holosun and Primary arms which features the award winning ACSS Vulcan reticle which is a 250 MOA outer ring and a 10 MOA center chevron. We understand that not having these optics in front of it ca., 19 posts · Joined 2021. #1 · Oct 30, 2021. I have a Glock 19 gen 5 mos and have tried several optics. I do not like running suppressor sights because I want to use the whole window. I have a 43x mos with a 507k and like it a lot. I like how the rear sight channel is kinda like a rear sights. I found a mos plate by C & H precision., Quick overview video of the differences between the 507 and 508. Not a lot of differences but the ones that are very important.PSA... I made a mistake on the..., The Holosun 508t is a similar size to the 507c, but there are a few differences in its measurements…. It has a height that measures in at 1.08 inches. In addition to that, it has a width that measures in at 1.21 inches, and its length comes in at 1.77 inches…. On top of that, the 508t’s weight comes in at 2.0 ounces…., Apr 26, 2023 · Holosun EPS vs 507K Reticle Options The 507K has a multi-reticle system that allows you to use either a 2 MOA dot or a 32 MOA circle. The Holosun EPS and EPS Carry models come in a wider variety of options. I own the EPS Carry Red 6, which means it’s a red reticle that’s 6 MOA in size. There is a 2 MOA option and also a multi-reticle system ... , Dec 9, 2023 · The Holosun 507K X2 features the same 2 MOA dot + 32 MOA ring just like the Holosun 507C X2. It's big enough for shooters to pick up and especially for sub compact pistols with 1911 style grip angle. 32 MOA is definitely big enough to acquire even if the center dot is completely off center. The shooter can still see part of the ring as a ... , Dec 13, 2022 · The answer is... both! My sincere recommendation would be to get a torque wrench/screwdriver cable of doing as low as 10 inch/lb measurements. (IIRC holosun spec is 15 inch/lbs... refer to your user manual) You can, however, use a regular screwdriver if you have well calibrated wrist/elbow and are familiar with how certain levels of torque "feel". , Mar 16, 2024 · I hope this comparison guide will help you understand the difference between the two red dots here and which one you should prefer. The Holosun 407c and 507c have more similarities than differences. The major difference is the reticle options which the 507c has 3, and the 407c has just 1. Also, the 407c is a few dollars lesser than the 507c. , Aug 13, 2023 · Both models have the same IP67 submersion rating, but the 509T is slightly heavier at 1.72 oz compared to the 507C at 1.5 oz. Both optics have a battery life of 50,000 hours with solar backup. Check out these two badass red dot optics. Holosun 507C and 509T. Open emitter vs closed emitter designs. , Feb 21, 2024 · Yes, both models have the same lens and window sizes, allowing for consistency in sight picture. See 3,000+ New Gun Deals HERE. 4. Can I use the same suppressor height sights for the 507c and 507k? Yes, the suppressor height sights are compatible with both the 507c and 507k due to their identical footprints. 5. , However, there are differences in their dimensions and weights. The dimensions of the 507k are 1.6" long, 0.98" wide, and 0.95" tall, making it the smaller of the two. Additionally, it weighs only one ounce, meaning it will not significantly affect the balance of your pistol. The 507C weighs 1.5 ounces, which is 50% more than its predecessor., We know Holosun for quality but affordable sights and some other micro red dot sights by them are Holosun 507k x2, Holosun 407k, and Holosun 507c x2. The 507k has a multiple reticle system: a 2 MOA dot, a 2 MOA dot with a 32 MOA circle, and a 32 MOA circle only. This versatile selection caters to different shooting scenarios. One of the ..., The main difference between the Holosun 507c and 507k is that the 507c is for full-sized handguns, whereas the 507k is for subcompact guns. So, the 507k is small …, Holosun 407k vs 507k comparison and parallax., Water and shockproof. Recessed elevation turrets. Scratch-proof coated lens. Precise and accurate red dot target. Weighs only 1.1 Oz (lighter than the Holosun 507c) The battery is easily replaceable. The battery works 30,000 hours on a lower setting and on a higher setting for 150,000 hours. Auto brightness mode., Let’s continue with Holosun’s micro red dot with its K model, the HS507K X2. And just for comparison…let’s see the full-size C model vs. the K. Like its bigger brother, the all-metal housing HS507K feels great in hand and has a nice chunky enclosure that’s sure to survive all but the worst abuse., Most people experience stress sometimes — but the effects of long-term stress can impact you both physically and mentally. It’s common to feel stressed sometimes — but chronic stre..., Nov 26, 2023 · Holosun 507 Comp vs 507C X2 Deck Height. The deck height on the 507 Comp and the 507C X2 is the same. The deck height comes in at about 9mm. There are slightly different bevels, but the height is the same. Holosun 507 Comp vs 507C X2 Reticles. The Holosun 507 Comp and the 507C X2 have different reticles. , Purchased Holosun SCS for Glock 20 gen 5 MOS. Holosun mounted by gun store using screws that accompanied the sight. No lock tight was added because blue was already on the screws and a torque tool was used to ensure proper tightening. I watched the installation. Shot at the range firing PMC 10MM, 200 grain FMJ-TC., Holosun optics are known for their durability and use of high quality materials. The optics from the 507 series are made with 7075 T6 aluminum, which make them lightweight and sturdy. Additionally, the optics for both 507K and the 507K X2 are fog and waterproof, with an IP67 rating. The sights have also been tested for use in harsh temperatures ..., Holosun 407K & 507K Optic Cover - Precision Fit, High-Quality Soft Rubber Protection - Dust, Scuff & Scratch Resistant ... Holosun 508T X2 vs 507C X2 Which is Better? As you can see the main difference between the 507C X2 and the 508T X2 is that the 508T X2 has a square shape and is made out of titanium. Both the titanium and the …, Holosun 507C Vs 508T: Battle of the Sights. The Holosun 507C and 508T are red dot sights with distinct features and durability levels. The 507C offers a versatile design, while the 508T is crafted for rugged reliability. Delving into the world of optics, enthusiasts often encounter the Holosun 507C and 508T. These sights epitomize cutting …, Initial impressions are: Tint is much less annoying on the 507K. For a given (perceived) brightness match, the RMR cc dot is a little sharper to my eyes (and I have slight astigmatism in my dominant eye) (2MOA for Holosun vs 3.5MOA on RMR cc). The edges on the RMR body are softer (good for smashing into my belly), Sep 10, 2023 · A Final Comparison. Both the Sentinel and Holosun 507k offered remarkable experiences in their unique ways. While the Sentinel excelled in its automatic brightness feature and compactness, the Holosun 507k impressed me with its reticle versatility and extensive battery life. However, as an avid shooter, I’ve realized that choosing between ... , 1. Dot Size. The biggest difference between the 407k and the 507k is the dot size. This is the first criterion to decide which is best for you. The 407k has a 6 MOA dot. At 100 yards, the dot covers about 6 inches, and 3 inches at 50 yards. You pick red or green. The 507k has a 2 MOA dot surrounded by a 32 MOA circle., Watch this video for some advice on renovating your basement. Expert Advice On Improving Your Home Videos Latest View All Guides Latest View All Radio Show Latest View All Podcast ...