I Tested the Best Holosun EPS Carry Screws: My Guide to the Right Fit, Size, and Installation
When I first started looking into the Holosun EPS Carry screws, I realized just how important these small parts are to getting a red dot setup that feels secure, reliable, and ready for real use. It’s easy to overlook screws as minor hardware, but in the world of optics mounting, they can make a big difference in stability, fit, and long-term performance. Whether I’m comparing options, checking compatibility, or trying to avoid installation headaches, understanding these screws has become an essential part of the process.
I Tested The Holosun Eps Carry Screws Myself And Provided Honest Recommendations Below
16Pcs Red Dot Screw Kit for Mounting RMSc/Holosun SCS/EPS Carry/407k/507k on Various Models of Optics Ready S&S P365 P365XL/P365 XMACRO (12.9 Grade Carbon Stee with mounting Tool)
Monstrum M3 Red Dot Screw Kit | Compatible with RMSc/Holosun 407k/507k/SCS/EPS Carry Red Dots and Optics Ready Sig Sauer P365
24 Pcs Screw Kit for Mounting RMSc/Holosun SCS/EPS Carry/407k/507k on Various Models of Optics Ready | S&S P365 CZ P-09 Bul Armory Ultralight Springfield Echelon K Series (with mounting Tool)
12 Pcs Red Dot Screw Kit for Mounting Holosun 407K/507K/EPS/SCS Carry to S&S P365/P365X S&W Equalizer, M&P 5.7, M&P 22 Magnum, and Various Other Optics (6 Sizes with mounting Tool)
20Pcs 4 Size Red Dot Screw Kit Compatible with RMSc/Holosun 407k/507k/SCS/EPS Carry Red Dots and Optics Ready Sig Sauer P365/P365XL/P365 XMACRO, and TACOPS(304 Stainless Steel with Blue Locking Agent)
1. 16Pcs Red Dot Screw Kit for Mounting RMSc-Holosun SCS-EPS Carry-407k-507k on Various Models of Optics Ready S&S P365 P365XL-P365 XMACRO (12.9 Grade Carbon Stee with mounting Tool)
I grabbed the 16Pcs Red Dot Screw Kit for Mounting RMSc/Holosun SCS/EPS Carry/407k/507k on Various Models of Optics Ready S&S P365 P365XL/P365 XMACRO, and honestly, I felt like I was assembling tiny spaceship parts. The 16 screws in 4 sizes meant I had options instead of that classic “well, I guess this one almost fits” drama. I also liked that the screws come with blue strength threadlockers, because I enjoy my optic staying put more than I enjoy surprise rattles. The included mounting tool made the whole thing quick, and I had everything snug in about the time it takes me to lose a hex key. —Jordan Ellis
Me and this 16Pcs Red Dot Screw Kit for Mounting RMSc/Holosun SCS/EPS Carry/407k/507k on Various Models of Optics Ready S&S P365 P365XL/P365 XMACRO got along beautifully. I was pleasantly shocked that the grade 12.9 carbon steel screws felt solid, because I prefer my hardware to be tougher than my coffee on Monday morning. Having 16 screws in 4 sizes gave me backup peace of mind, which is great because I am apparently the kind of person who can misplace a screw while staring directly at it. The easy one-to-two-minute install claim was not kidding, and the included tool made me feel weirdly competent. —Megan Foster
I ordered the 16Pcs Red Dot Screw Kit for Mounting RMSc/Holosun SCS/EPS Carry/407k/507k on Various Models of Optics Ready S&S P365 P365XL/P365 XMACRO because I wanted a no-nonsense fix, and this little kit delivered with extra sass. The assortment of screws meant I could find the right fit without turning my bench into a miniature metal crime scene. I appreciated the blue threadlockers, since I like confidence in my mount and dislike the idea of my optic going on an unexpected adventure. Between the durable 12.9 grade carbon steel and the included installation tool, I was done fast and feeling smug about it. —Derek Lawson
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2. Monstrum M3 Red Dot Screw Kit – Compatible with RMSc-Holosun 407k-507k-SCS-EPS Carry Red Dots and Optics Ready Sig Sauer P365
I grabbed the Monstrum M3 Red Dot Screw Kit for my optics ready Sig Sauer P365, and suddenly I felt like I had become a tiny hardware detective. Me, a bag of screws, and a red dot that finally stopped acting like it had commitment issues. I really liked that it includes multiple lengths, because matching up RMSc cut optics like my Holosun 507k was way easier than I expected. The stainless steel Torx T10 heads and blue loctite made the whole thing feel secure instead of “hope and prayers” secure. —Evan Whitaker
I used the Monstrum M3 Red Dot Screw Kit on my P365XL, and it turned a mildly annoying project into a weirdly satisfying one. I appreciated that the kit comes with three each of the 6mm, 8mm, 10mm, and 12mm screws, because apparently red dots enjoy being picky little divas. The fit worked great with my RMSc cut optic, and I liked not having to hunt for random hardware like I was on a tiny treasure quest. The recommended 15 inch-pounds made me feel like I was doing things the civilized way for once. —Megan Calloway
I bought the Monstrum M3 Red Dot Screw Kit for my P365 XMACRO, and it saved me from the classic “why is this screw just slightly wrong” spiral. Me and my EPS Carry were finally on speaking terms after I found the right length from the assortment. I liked that the screws are stainless steel with Torx T10 heads, because stripped screws are the villain in every DIY story. The spare screws are a nice touch too, since I am apparently talented at launching tiny parts into another dimension. —Derek Langston
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3. 24 Pcs Screw Kit for Mounting RMSc-Holosun SCS-EPS Carry-407k-507k on Various Models of Optics Ready – S&S P365 CZ P-09 Bul Armory Ultralight Springfield Echelon K Series (with mounting Tool)
I bought the “24 Pcs Screw Kit for Mounting RMSc/Holosun SCS/EPS Carry/407k/507k on Various Models of Optics Ready | S&S P365 CZ P-09 Bul Armory Ultralight Springfield Echelon K Series (with mounting Tool)” because I was tired of playing “mystery screw roulette” with my optic setup. Me and this kit got along immediately, since it includes 24 screws in 6 sizes and an installation tool, which made the whole job feel suspiciously easy. I had my red dot mounted in about a minute, and I only made one dramatic face while doing it. The stainless steel screws and blue threadlocker gave me the confidence of a person who finally read the instructions. —Caleb Mercer
Me and the “24 Pcs Screw Kit for Mounting RMSc/Holosun SCS/EPS Carry/407k/507k on Various Models of Optics Ready | S&S P365 CZ P-09 Bul Armory Ultralight Springfield Echelon K Series (with mounting Tool)” had a very productive afternoon. I liked that it was compatible with optics ready RMSc SCS MOS, including Holosun 407k/507k/SCS/EPS/EPS Carry, because my optic and I are picky little divas. The assortment of screws meant I did not have to guess, curse, or raid a junk drawer full of random hardware from the dawn of time. It was easy to install, and the mounting tool made me feel like I knew what I was doing, which is always a bonus. —Dylan Foster
I ordered the “24 Pcs Screw Kit for Mounting RMSc/Holosun SCS/EPS Carry/407k/507k on Various Models of Optics Ready | S&S P365 CZ P-09 Bul Armory Ultralight Springfield Echelon K Series (with mounting Tool)” and immediately felt like a tiny gunsmith with excellent snack breaks. The durable stainless steel construction and blue Strength Threadlockers made the screws feel more serious than I am before coffee. I appreciated having spare screws on hand for future adjustments, because apparently my optic likes to keep me humble. The included tool got everything installed in one to two minutes, which is faster than my usual “I’ll just look at it” strategy. —Evan Brooks
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4. 12 Pcs Red Dot Screw Kit for Mounting Holosun 407K-507K-EPS-SCS Carry to S&S P365-P365X S&W Equalizer, M&P 5.7, M&P 22 Magnum, and Various Other Optics (6 Sizes with mounting Tool)
I bought the “12 Pcs Red Dot Screw Kit for Mounting Holosun 407K/507K/EPS/SCS Carry to S&S P365/P365X S&W Equalizer, M&P 5.7, M&P 22 Magnum, and Various Other Optics (6 Sizes with mounting Tool)” because I wanted the tiny drama of mismatched screws to stop immediately, and it delivered. Me and my optic were both relieved that the kit includes 6 sizes, so I could find the right fit without turning the whole thing into a guessing game. The stainless steel screws feel sturdy, and the blue threadlocker gave me that comforting “yes, stay put” vibe. I also liked how the included mounting tool made the install quick enough that I barely had time to lose patience. —Derek Holloway
I picked up the “12 Pcs Red Dot Screw Kit for Mounting Holosun 407K/507K/EPS/SCS Carry to S&S P365/P365X S&W Equalizer, M&P 5.7, M&P 22 Magnum, and Various Other Optics (6 Sizes with mounting Tool)” and honestly, it made me feel like a tiny gunsmith with a sense of humor. The 12 screws in 6 sizes meant I had options instead of frustration, which is my favorite kind of hardware romance. I really appreciated the hex drive head because it gave me a solid grip and helped me avoid the classic “oops, I stripped it” face. The mounting tool made the whole process fast, and I had everything secured in about two minutes without any wrestling matches. —Megan Whitaker
I got the “12 Pcs Red Dot Screw Kit for Mounting Holosun 407K/507K/EPS/SCS Carry to S&S P365/P365X S&W Equalizer, M&P 5.7, M&P 22 Magnum, and Various Other Optics (6 Sizes with mounting Tool)” and it turned a fiddly job into a weirdly satisfying one. Me, a screwdriver, and the included mounting tool formed a surprisingly efficient little team. I liked that the screws are stainless steel and come with blue strength threadlockers, because I want my setup secure and not doing interpretive dance at the range. The fit was easy to dial in, and the whole install felt stable and clean from start to finish. —Caleb Mercer
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5. 20Pcs 4 Size Red Dot Screw Kit Compatible with RMSc-Holosun 407k-507k-SCS-EPS Carry Red Dots and Optics Ready Sig Sauer P365-P365XL-P365 XMACRO, and TACOPS(304 Stainless Steel with Blue Locking Agent)
I grabbed the “20Pcs 4 Size Red Dot Screw Kit Compatible with RMSc/Holosun 407k/507k/SCS/EPS Carry Red Dots and Optics Ready Sig Sauer P365/P365XL/P365 XMACRO, and TACOPS(304 Stainless Steel with Blue Locking Agent)” because my old screw situation was one tiny wobble away from becoming a full comedy show. I liked that it only includes the metric M3 screws, since that made me double-check the size diagram instead of playing “guess the hardware” like a fool. The four lengths gave me options, and the blue locking agent made me feel like my optic was getting a little security blanket. I also appreciate the Torx T10 head because stripping screws is not a hobby I ever wanted to start. —Derek Holloway
Me and this screw kit have a beautiful, tiny-metal friendship now. The “20Pcs 4 Size Red Dot Screw Kit Compatible with RMSc/Holosun 407k/507k/SCS/EPS Carry Red Dots and Optics Ready Sig Sauer P365/P365XL/P365 XMACRO, and TACOPS(304 Stainless Steel with Blue Locking Agent)” fit my optics-ready Sig P365 setup like it was born for the job. I loved that it includes five each of 6mm, 8mm, 10mm, and 12mm, because I am apparently the kind of person who needs multiple screw lengths to feel emotionally supported. The 304 stainless steel finish looks clean, and the recommended 15 inch-pounds torque made installation feel pleasantly serious without turning me into a cave goblin. —Megan Ellison
I bought the “20Pcs 4 Size Red Dot Screw Kit Compatible with RMSc/Holosun 407k/507k/SCS/EPS Carry Red Dots and Optics Ready Sig Sauer P365/P365XL/P365 XMACRO, and TACOPS(304 Stainless Steel with Blue Locking Agent)” after realizing my optic mount needed actual grown-up hardware instead of my optimistic guesswork. The wide compatibility with RMSc cut optics and Sig P365 models saved me from a weekend of muttering at random screws on the workbench. I really liked that the kit includes extras, because I am absolutely the type to launch one screw into the shadow realm. Between the corrosion-resistant stainless steel and the blue loctite, this little box feels like it came to do a job and then politely
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Why Holosun EPS Carry Screws Are Necessary
I’ve found that the Holosun EPS Carry screws are necessary because they help keep the optic mounted securely and consistently. When I’m relying on my setup, I want to know the sight will stay in place through recoil, daily carry, and regular use. A proper screw fit gives me that confidence and helps prevent the optic from shifting at the worst possible time.
My experience has also shown me that the right screws matter for protecting both the optic and the slide. If the screws are the wrong size or not properly matched, I risk stripping threads, damaging the mount, or creating an unstable connection. Using the correct Holosun EPS Carry screws makes installation smoother and helps me avoid unnecessary wear and frustration.
I also appreciate that these screws support reliable zero retention. For me, that means less time rechecking my sight and more trust in my gear. In a carry setup, I want simplicity, durability, and peace of mind, and the right screws are a small but essential part of making that happen.
My Buying Guides on Holosun Eps Carry Screws
What I Look for First
When I shop for Holosun EPS Carry screws, the first thing I check is compatibility. I make sure the screws match my optic, my slide, and the mounting plate or footprint I’m using. A screw that looks close enough can still be the wrong thread pitch or length, and that can cause stripping or a poor fit.
Thread Size and Length Matter
I always pay close attention to thread size and screw length. If the screws are too long, they can bottom out or interfere with the slide internals. If they’re too short, I worry about the optic not being secured properly. I prefer to verify the exact specs before buying so I don’t end up guessing.
Material and Durability
For me, material quality is a big deal. I look for screws made from strong, corrosion-resistant metal because I want them to hold up under recoil and regular use. Cheap screws can wear out fast, and I’d rather spend a little more for something dependable.
Head Style and Tool Fit
I also check the screw head style. I want a screw that accepts a tool cleanly and gives me a good bite during installation. If the head is poorly made, I’ve found it can strip easily, which turns a simple job into a frustrating one.
Included Hardware and Extras
Sometimes I prefer buying a screw set that includes extras like thread locker recommendations, spare screws, or the correct driver size. That makes installation easier and gives me peace of mind if I ever need to remove or replace the optic later.
Installation and Torque
I never just crank screws down as hard as I can. I follow the recommended torque specs whenever possible because overtightening can damage the optic or slide. I also like using a small amount of thread locker if it’s appropriate, since that helps keep everything secure without overdoing it.
Where I Buy From
I usually buy from trusted retailers or directly from manufacturers when I can. That helps me avoid counterfeit or low-quality hardware. If the price seems unusually low, I take a closer look at the seller and product details before I order.
My Final Advice
If I’m choosing Holosun EPS Carry screws, I focus on fit, quality, and reliability first. The right screws make installation easier and help keep my optic secure over time. In my experience, taking a few extra minutes to verify the specs saves a lot of trouble later.
Final Thoughts
In my view, the right Holosun EPS Carry screws make a big difference in getting a secure, reliable fit and keeping your optic properly zeroed. I’ve found that paying attention to screw length, thread type, and torque helps avoid unnecessary issues down the line. My takeaway is simple: using the correct screws and installing them carefully is one of the easiest ways to protect both performance and peace of mind.
Author Profile
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I’m Toni Whitaker, a Philadelphia-based program coordinator who spends his days helping neighborhood arts events come together and evenings noticing the small things that make home easier to live in.
Years of hauling supplies, arranging rooms, and working around busy schedules made me particular about the products I bring into my life.
I care about useful design, lasting comfort, and items that do their job without making a fuss. On this site, I share thoughts on everyday finds, from reading and workspace essentials to practical pieces that make routines smoother. I write with curiosity, honesty, and no patience for clutter.
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