Great on a ar15 with 5.56 - POF USA Drop In Trigger Assembly 00858P

Put in 3 AR15 carbines, Anderson .556, Anderson .556, S&W MP .556. Put one in Anderson .556 pistol and one in a Windom .308 Rifle. Improved accuracy in all a lot. The .308 is now more accurate than my vaulted long range Ruger Precision Bolt in .308. Easy and fast install for anyone but an idiot. The only problem encountered was using with a previously reliable CMC .22lr conversion bolt in a carbine. 3-5 ftf from light strikes on the rimfire primers. Would work fine in a hunting, target or some law enforcement applications shooting .223/5.56mm with a clean rifle but in combat rifles they get dirty (especially with Russian ammo) and grime tends to slow the hammer striking lighter on the primer. Don't trust it for that application.