They work
Had not replaced standard pins in any of the many AR's I have built. Did an 80% lower which the clamp must of slipped a bit when drilling the hammer pin as it was a hair egged so loose with the standard pins. Had no problem with the install or functioning of these pins. even with the hammer pin hole a bit egged these pins tightened everything up. Started replacing all my pins with these or Strike Industries. I tried a set of Strike industries pins, too both excellent choices. I might favor the Strike pins due to no spacer a touch easier to install.
Anti-walk pins
easy install, and a great fit, tight and secure. i have started to replace all my AR rifles with these anti walk pins
Works Well
The finish is nice and dark. These were installed on an Elftmann AR-15 straight shoed trigger. Looks and works great.
Great idea
I've used an awful lot of different hammer/trigger pins, these are by far my favorite. A simple but very good idea, they beat the tiny button head cap screws and the micro e-rings hands down. I'm ordering a few more sets as I'm writing this review. Get yourself some, you won't be disappointed.
Not a good design
Pins were too thick (tried on 7 lowers; 5 failed to insert). On the lower these pins fit, once installed the lock plate scratches easily ruining the bluing. There are foam pads that I assume are supposed to keep the pins from moving (walking) side to side, but they add unnecessary tension that makes install much more difficult than it should be. Once installed, it looks pretty terrible. The hammer really wants to rotate the pin thanks to how oversized it is. Eventually, this pin set made its way into the junk drawer. Hard pass, guys. Too fiddly and too many "moving parts" for much to go wrong.
Threw These Away
This is advertised as easy install, but it does not come with instructions. I looked up on YouTube how to install it. I installed it correctly, but the clips where poorly made and would only hold one pin at a time, allowing the other to walk out. Very poor quality control.
So disapointed
Sounded like the perfect solution to the walking trigger and hammer pins on my lower receiver, but when I attempted to install the new pins, I could not get one of them to go in. Pulled out my calipers to see if there was any difference, and sure enough one of them measured .154 inch diameter, and the other one was .156 diameter. They're both supposed to be .154 inches in diameter. Impossible to install, unless I want to bore out my lower receiver and trigger group.