These are why Anti walk pins are needed when building a ar Anti Walk Ar Pins
Anti walk trigger pins vs stock pins CMC AR Upgrades !!! #cmc Excellent low profile anti-walk pins. Perfect for any cassette style drop in trigger group! Smooth, easy installation, and the torx screws prevent slippage from These are an optional add-on for the AR15 and AR10. They keep the trigger and hammer pins from rotating in their holes and Fixing the AR walking pins ...