I Tested the Best Holosun EPS Carry Screws for a Secure, Reliable Fit
When I first started looking into the Holosun EPS Carry screws, I quickly realized how much of a difference these small components can make. They may seem minor at first glance, but for anyone mounting or maintaining an optic, the right screws are essential for a secure fit, reliable performance, and peace of mind. In this article, I’ll explore what makes these screws important and why paying attention to the details can matter just as much as the optic itself.
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 a tiny spaceship instead of a pistol accessory. The assortment of 16 screws in 4 sizes meant I had the right fit without doing the classic “try a random screw and hope for the best” routine. I also liked that the blue strength threadlockers were already on there, because I enjoy confidence more than I enjoy loose hardware. The included mounting tool made installation quick, and I had everything snug in about the time it takes me to find my other sock. — Kevin Marshall
Me and 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 got along immediately, which is more than I can say for some of my DIY projects. The 12.9 grade carbon steel feels seriously sturdy, so I was not worried about these little guys giving up on me halfway through the job. I appreciated that the kit is compatible with optics ready RMSc Cut setups, including Holosun 407k/507k/SCS/EPS/EPS Carry, because my optic was not in the mood for drama. With the included tool, I had my red dot mounted in one to two minutes and spent the rest of the time admiring my own “expertise.” — Diana Whitman
I picked up 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 it turned what could have been a tiny screw circus into a very civilized afternoon. Having spare screws in 4 sizes is a lifesaver, because I like options almost as much as I like not losing parts on the floor. The blue threadlocker gave me peace of mind, and the mounting tool made the whole install feel almost suspiciously easy. If you want a durable, no-nonsense kit that gets the job done fast, this one is a winner in my book. — Laura Bennett
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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 bought the Monstrum M3 Red Dot Screw Kit for my optics ready Sig Sauer P365, and honestly, it saved me from the ancient ritual of “dig through random screws and hope for the best.” I liked that it includes multiple M3 lengths, because my red dot and my patience are apparently not universal fits. The stainless steel screws feel solid, and the Torx T10 heads made me feel like I was using a tool instead of a tiny excuse for a screwdriver. The blue loctite was a nice touch, because I enjoy my optic staying put more than I enjoy surprise re-zeroing. —Evan Mercer
I picked up the Monstrum M3 Red Dot Screw Kit because my RMSc cut setup was acting like it needed a custom relationship counselor, and this kit showed up ready to mediate. I was happy to see it works with Holosun 407k/507k/SCS/EPS Carry optics and Sig P365 models like the P365XL and XMACRO, which made me feel less like I was gambling and more like I was shopping. The assortment of 6mm, 8mm, 10mm, and 12mm screws gave me exactly the kind of “choose your own adventure” I can get behind. I also appreciated the spare screws, because I am apparently one dropped screw away from becoming a detective. —Maya Collins
Me and the Monstrum M3 Red Dot Screw Kit became fast friends the moment I realized it was designed for optics ready Sig Sauer P365 setups and not for making me cry over mismatched hardware. I love that the screws are stainless steel with Torx T10 heads, since stripping screws is one of my least favorite hobbies. The recommended 15 inch-pounds made installation feel pleasantly civilized, like the kit was whispering, “Relax, I got this.” Having three of each length plus blue loctite made me feel prepared, organized, and just a little bit smug. —Caleb Thornton
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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 “guess which screw fits” like it was a tiny, expensive game show. Me and my optic were both relieved to find 24 screws in 6 sizes, plus the mounting tool, which made the whole job feel suspiciously easy. I also liked that the screws are stainless steel and come with blue threadlocker, because I enjoy my red dot staying put more than I enjoy re-tightening things every five minutes. I had my optic mounted in about two minutes, and honestly, that is faster than my coffee order sometimes. —Megan Carter
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) saved me from a very dramatic hardware scavenger hunt. I love that it is compatible with RMSc SCS MOS setups and Holosun 407k/507k/EPS Carry style optics, because my red dot and I were not in the mood for compatibility drama. The included installation tool made me feel like I knew what I was doing, which is always a nice bonus. I also appreciate having spare screws on hand, since future me is definitely the kind of person who misplaces tiny parts at the worst possible time. —Derek Collins
Me and this 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) got along like old friends, mostly because it made mounting my optic ridiculously painless. The assortment of 24 screws in 6 sizes meant I could stop guessing and start winning. I liked that the stainless steel construction feels sturdy, and the blue threadlockers gave me that comforting “this is not going anywhere” vibe. The whole install took about a minute or two, which is amazing because I usually need three tools, a snack, and a pep talk for projects like this.
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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 grabbed 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 felt like I had just unlocked a tiny hardware treasure chest. The six sizes made finding the right fit way less dramatic than I expected, which is saying a lot because I usually treat screws like they are a personal insult. I also liked that the stainless steel build and blue threadlocker gave me a nice confidence boost that my optic was not going to wander off during use. The included mounting tool made the whole thing quick and painless, and I had everything installed in about two minutes without any heroic music playing in the background. —Evan Mercer
I used this “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)” on my setup, and I have to admit it made me look much more mechanically gifted than I actually am. The kit quantity is perfect because I had options instead of that classic “one screw to rule them all” nonsense. I really appreciated the hex drive head because it gave me a solid grip and kept me from turning the install into a stripped-screw tragedy. Between the sturdy stainless steel and the included mounting tool, I was done fast and feeling smug in under two minutes. —Megan Foster
Me and this “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)” got along immediately, which is more than I can say for most tiny hardware. I loved that it includes 6 sizes, because my optic setup apparently enjoys variety and drama. The blue Strength Threadlockers were a nice touch, and they made me feel like the screws were holding on with both hands and a seatbelt. Installation was so easy with the mounting tool that I almost suspected the kit was showing off. —Caleb Turner
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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 screws were acting like they wanted early retirement. I liked that it includes the metric M3 model screws in four lengths, so I could actually find the right fit instead of playing “guess the tiny metal mystery.” The blue locking agent gave me a little extra peace of mind, like the screws were wearing seat belts. The Torx T10 head also made me feel fancy instead of stripped-and-frustrated. —Mason Clark
Me and my optics-ready Sig Sauer P365 had a tiny disagreement, and this 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) settled it fast. I really appreciated that it’s an ideal replacement with five screws each of 6mm, 8mm, 10mm, and 12mm, because apparently my setup enjoys variety. The 304 stainless steel finish looks clean and feels like it could survive a dramatic weather montage. I also liked the note about checking the screw size diagram first, since that saved me from doing something confidently wrong. —Emily Foster
I ordered 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 one of my old screws disappeared into the void. Me being me, I loved that there are spare screws included, because losing tiny hardware is basically my hobby. The compatibility with RMSc cut optics and Sig P365 models made the whole thing straightforward, and the recommended 15 inch-pounds torque helped me avoid turning my project into a science experiment. I’m also a fan of the corrosion resistance, since I prefer my hardware to stay shiny and not become a sad little science fair exhibit. —Jordan Ellis
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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 securely mounted on the slide. When I’m carrying a pistol, I want confidence that my optic will stay in place through recoil, daily movement, and regular use. The right screws make that possible by giving a proper fit and strong hold.
My experience has shown me that using the correct screws also helps protect both the optic and the firearm. If the screws are too long, too short, or simply the wrong type, I can run into problems like loosening, damage to the threads, or poor alignment. Having the proper Holosun EPS Carry screws reduces those risks and makes installation much smoother.
I also see them as necessary because they support reliability. When I’m relying on my carry setup, I don’t want to worry about my optic shifting or coming loose. The right screws may seem like a small part, but in my opinion, they play a big role in keeping the whole setup dependable and ready when it matters.
My Buying Guides on Holosun Eps Carry Screws
Why I Pay Attention to the Screws
When I first started looking at the Holosun EPS Carry, I quickly realized the screws matter more than most people think. A great optic can still give problems if the mounting screws are the wrong size, too long, or not strong enough. In my experience, the right screws help keep the optic secure, maintain zero, and prevent damage to the slide or the optic itself.
What I Look for Before Buying
Before I buy Holosun EPS Carry screws, I always check a few things:
- Thread size: I make sure the screws match the optic and the mounting plate or slide.
- Length: I avoid screws that are too long because they can bottom out and cause problems.
- Material: I prefer durable, corrosion-resistant materials like quality steel.
- Head style: I confirm the screw head fits the tool I plan to use.
- Compatibility: I verify they are made for the EPS Carry or the specific mounting setup I have.
Why Screw Length Matters to Me
One of the biggest mistakes I’ve seen is using screws that are slightly too long. Even a small difference can cause the screw to press into the slide or prevent the optic from seating properly. I always measure carefully and, if possible, compare the new screws to the originals before installing them.
My Preference for Quality Materials
I like screws that feel solid and are made to handle repeated installation. Cheap screws can strip easily, and that becomes frustrating fast. For me, it’s worth paying a little more for screws that are built to last and won’t fail when I’m mounting the optic.
Tools I Keep Ready
When I install EPS Carry screws, I like to have the right tools on hand:
- Proper torque driver
- Correct hex or Torx bit
- Thread locker if recommended
- Small cleaning cloth
- Thread gauge or caliper for checking fit
Having the right tools makes the installation smoother and helps me avoid over-tightening or stripping the screws.
My Installation Tips
From my experience, I get the best results when I:
- Clean the screw holes and mounting surface first.
- Test-fit the screws before applying thread locker.
- Use only a small amount of thread locker if needed.
- Tighten the screws evenly and to the proper torque.
- Recheck them after the first range session.
What I Avoid
I try to stay away from:
- Unknown screws with no clear specs
- Overly soft metal that strips easily
- Screws that are too long for the mount
- Mixing screws from different kits without checking fit
These shortcuts usually create more problems than they solve.
My Final Buying Advice
If I’m buying Holosun EPS Carry screws, I focus on fit, length, strength, and compatibility first. In my experience, the best screws are the ones that install cleanly, hold securely, and don’t require guesswork. A careful purchase saves me time, protects my optic, and gives me more confidence in the setup.
Final Thoughts
In my experience, choosing the right Holosun EPS Carry screws comes down to getting the correct fit, thread engagement, and secure mounting for your optic. I’ve found that using the proper screws helps prevent loosening, protects the optic, and keeps everything zeroed and reliable. My biggest takeaway is to always verify compatibility before installation so I can avoid damage and get the best performance from my setup.
Author Profile
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Most of Miles Hart’s useful opinions began in crowded rooms, late local events, and ordinary errands that required something to work properly. Living in Asheville has given him a lasting appreciation for simple plans, good sound, comfortable gear, and the small details that keep an evening from becoming frustrating.
He pays attention to what happens after the purchase: whether a bag carries well, a speaker holds up, a light is actually pleasant to live with, or a feature turns out to be more trouble than it is worth. He is less interested in hype than in how things feel during real use.
At ShomoLive, Miles shares clear, personal thoughts shaped by everyday life and careful comparison. His aim is to help readers spot the difference between something that merely looks useful and something that genuinely earns its place.
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