Bought these to mount a Nikon Buckmasters II atop a Ruger American Ranch in .223/5.56. The fit and finish was perfect. The package includes a hex key for tightening all mounts and a spare screw.

So far I've put exactly 100 rounds through the rifle, and the scope has remained tight and secure, and these mounts look great with it. This is my first time owning a scoped rifle other than red dots on ARs, but so far they've performed perfectly. I'll try to update my review after more use and handling.

They're well worth what I paid. Scope manufacturers typically provide a torque specification for their optics. I installed them on a rail mount with a 44mm objective and it fits with plenty of clearance. Not super solid but so far they have held up to several range trips on my .308. Overall they're well worth the money you pay and they have met my expectations. 4 stars for being a great value.

This will be a quick one. I ordered these because the ones that came with my scope have Phillips head screws and I wanted to replace them with something I could used more than once. But these are made for a picatinny rail not the narrow rail on the top of my Mossberg 702. They will also go in my parts bin.

I have had these rings for a couple of years now. They are holding a Nikon Prostaff 3-9x40 BDC on a FNAR .308. They hold the scope and the rail tightly when properly tightened. I have since moved the scope and rings onto a Midwest Industries side rail mount on top of a C39V2 AK47 clone. I am buying the slightly upgraded 6 screw UTG mounts for my Nikon 4-12x40 BDC .308 scope, but I was strongly considering these rings for it again.

The 4 screws on top need to be tightened in the classic star or crossover pattern and paying particular attention to maintaining the gap on both sides approximately the same. They have come loose on me and I have since blue loctited them. I have had no issues since then.

The screw that tightens to the rail will not work if finger tightened. Use the same allen wrench that is used to tighten the top screws and use it for extra torque. The spring tension on the rail fastener is nice and it makes quick adjustment of the scope for eye relief easy.

I used to store the scope and mounts removed from the rifle since the FN case was too narrow to fit a scoped rifle. The scope has held zero every time it has been put on the rail. The FNAR has been a sub-MOA rifle every time I've taken it out and attached the scope. Obviously, I would prefer to leave it on permanently, and the C39V2 is now permanently attached to the side rail mount.

TL:DR Tighten and loctite the screws properly. Tighten the mount. Recommended for your average optics e.g. Nikon, Bushnells, etc., maybe not a Leupold or Nikon M-series.

These are my 6th set of UTG rings. After I purchased my first set (a couple years ago) I decided they were a must buy for the rest of my rifles. The quality you get at this price point is unparalleled. I've used them on an array of different firearms with varying levels of recoil. From a .22 to a 30-06 and even a .50 cal muzzleloader and they all hold true. These rings + a small dab of loctite on the screws in your rings and base = a rock solid foundation for your optic