The Tiger Rock BC-BBR 223/5.56 Rifle Bolt Catch Assembly Kit enhances your AR-15 performance and reliability. This kit, crafted from hardened steel to Mil-Spec dimensions, features a Cerakote Burnt Bronze finish that resists wear and corrosion while providing a sleek look. Complete assembly kit: includes bolt catch, plunger, spring, and roll pin Mil-Spec dimensions for guaranteed compatibility Cerakote Burnt Bronze finish for aesthetic and corrosion resistance Designed for easy installation on AR-15 platforms Upgrade your firearm with this reliable assembly kit and experience unmatched performance.