Kaw Valley Precision AR-15 One Piece Gas Ring

A standard AR bolt uses three separate gas rings, and the old advice about keeping the gaps staggered exists because those rings can rotate into line and bleed pressure past the bolt. This Kaw Valley Precision ring replaces all three with a single stainless piece and removes that question from the rifle entirely.

It seals better than a worn three ring stack, so the carrier gets a firmer push and lockup stays tighter on a bolt that has some miles on it. Installation runs a couple of minutes with no special tools: strip the old rings off and roll the new one into the groove. Fits standard AR-15 bolts in 223 Rem, 5.56 and 300 BLK.