CMMG Firing Pin for AR15 223 Rem 5.56 NATO 300 Blackout – Steel, Silver (55BA41C)

• Firing pin designed for AR-15 bolt carrier groups in multiple calibers
• Compatible with .223 Remington 5.56 NATO and 300 Blackout bolt assemblies
• Supports reliable primer ignition through consistent firing pin strike performance
• Silver finish allows easy identification during maintenance and cleaning procedures
• Designed for standard AR-15 platform bolt carrier group configurations
• Suitable for replacement of worn or damaged firing pins in AR rifles

The CMMG Firing Pin AR-15 223 556 300BLK Silver is a firing pin designed for striking primers in AR-15 bolt carrier groups chambered in .223 Remington, 5.56 NATO, and 300 Blackout. This firing pin is a direct replacement component for compatible AR-15 bolt assemblies. It is designed to fit standard AR-15 platforms using these calibers.

The CMMG AR-15 firing pin is constructed from steel and finished in silver. It is categorized as an internal bolt carrier group component and fits AR-15 rifles chambered in .223 Rem, 5.56 NATO, and 300BLK. This product is used for maintenance or replacement of firing system components for rifle platforms in range use or field setups. In standard configurations, the firing pin moves within the bolt assembly to initiate cartridge ignition during the firing cycle.