What contributes to a sluggish safety selector on an AR?
I assembled an AR pistol. At first the "discount" lower parts kit I used had visibly shallow angles for the safety selector, leading to a mushy feel on activation/deactivation. I replaced the detents and safety switch with leftovers from a CMMG branded kit and while it is a bit crisper when the selector arrives at the actual destinations, it often loses momentum partway and stops in between safe and fire. I have oiled it. My other assembled AR's don't do this, with parts kits from Rock River Arms and PSA.
My guesses are: Weak spring --> weak detent. Rough channel for the detent. Hole in grip drilled too deep --> weak spring pressure. Angles on Safety or detent not steep enough --> weak detent.
Kind of like a pocket knife detent on a frame lock/liner lock.
Am I missing anything? I could try another spring (it looked fine though..), another safety, or fill in the hole in the grip a little bit with something. At first, I was going to ignore this but it's annoying now.
I assembled an AR pistol. At first the "discount" lower parts kit I used had visibly shallow angles for the safety selector, leading to a mushy feel on activation/deactivation. I replaced the detents and safety switch with leftovers from a CMMG branded kit and while it is a bit crisper when the selector arrives at the actual destinations, it often loses momentum partway and stops in between safe and fire. I have oiled it. My other assembled AR's don't do this, with parts kits from Rock River Arms and PSA.
My guesses are: Weak spring --> weak detent. Rough channel for the detent. Hole in grip drilled too deep --> weak spring pressure. Angles on Safety or detent not steep enough --> weak detent.
Kind of like a pocket knife detent on a frame lock/liner lock.
Am I missing anything? I could try another spring (it looked fine though..), another safety, or fill in the hole in the grip a little bit with something. At first, I was going to ignore this but it's annoying now.