Wilson Combat TRAWPB Anti-Walk Pin Set Black AR-Platform 4 Pieces
https://www.tandktactical.com/shop/810025500573-wilson-combat-trawpb-anti-walk-pin-set-black-ar-platform-4-pieces-55481
https://www.tandktactical.com/web/image/product.template/55481/image_1920?unique=1e0076d
Locking pins are a popular, budget-friendly upgrade for hard use and full auto firearms which replaces the AR trigger or hammer pins.
