Has anyone used a KKM Precision barrel in a Glock 21? I've been told they are very accurate barrels. Just curious if they are any/that much better then the factory barrels and worth the money.
KKM and Bar-Sto are generally considered top choices in Glocks. Yes, they're that much better than stock Glock barrels. An added bonus on Glocks is how they improve slide to frame slop. It reduces how much the trigger bar can dip the rear of the slide, making the trigger feel noticeably crisper.