White Label Armory AR-15 Firing Pin Bolt Carrier Group Ten Pack Black. Unlike common cotter pins these are precision-machined and properly formed for exact fit and consistent retention. Each pin is phosphate coated for added durability and corrosion resistance. Perfect for builders armorers or maintenance kits these 100 percent American-made pins ensure dependable function in every build or repair. Specifications for White Label Armory AR-15 Firing Pin Bolt Carrier Group: Manufacturer: White Label Armory Color: Black Gun Make: AR Platform Gun Model: AR-15 Features of White Label Armory AR15 Firing Pin Retaining Pin: Includes 10 firing pin retaining pins Precision machined to Mil-Spec dimensions Designed for all standard AR15 bolt carriers Not standard cotter pins?final machined for proper fit Phosphate coated for corrosion resistance and durability Essential for AR15 builds and repairs 100 percent American made Reliable and consistent performance Package Contents: White Label Armory AR15 Firing Pin Retaining Pin What firearm models does the manufacturer say White Label Armory AR-15 Firing Pin Bolt Carrier Group is compatible with? The manufacturer says that White Label Armory AR-15 Firing Pin Bolt Carrier Group is compatible with AR-15White Label Armory WLA-PAC-3009-10: AR-15 Firing Pin Bolt Carrier Group Ten Pack Black