The KNS Precision Perma firing pin retaining pin is a direct replacement for the standard cotter pin used in AR-15 bolt carrier groups (BCG). It secures the firing pin within the carrier and is offered in a black finish. Constructed of steel, the part is intended for AR-15 BCGs and is explicitly not compatible with .308 bolt carriers. This compact replacement is designed for routine maintenance and upgrades to the bolt carrier assembly.
Key Specifications
- Made from steel for durability.
- Finished in black for a low-profile appearance and corrosion resistance.
- Designed to fit AR-15 bolt carrier groups (BCG).
- Does not fit .308 bolt carriers, per the product details.
- Replaces the standard cotter pin found in the bolt carrier to retain the firing pin.
- Classified as a Bolt Carrier Group part accessory.
- Weight listed as 0.1 lbs in the product details.
- Product is marketed as a Perma-style firing pin retainer for secure retention.
Simple, dependable, and made from steel, this Perma firing-pin retaining pin streamlines maintenance and adds a durable retention solution for AR-15 bolt carrier assemblies. Its black finish keeps the appearance discreet while resisting wear in normal service. Keep this compact part in your maintenance kit to ensure secure firing-pin retention during routine use and upkeep.
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