The Luth-AR 308-BT16 .308 Firing Pin Retaining Pin Standard is a purpose-built cotter-style pin engineered for AR-10 and .308 AR-pattern bolt carrier groups. Machined from durable 1045 carbon steel and finished in a protective manganese phosphate coating, it is intentionally oversized compared to AR-15 retainers to properly secure the firing pin in .308 / 7.62mm bolts for consistent, reliable ignition.

This small but critical component is ideal for builders, armorers, and owners maintaining or rebuilding .308 AR-platform rifles. Whether you are assembling a new AR-10 upper or refreshing a well-used rifle for range work, training, or general use, the 308-BT16 offers a straightforward drop-in replacement that helps keep your rifle cycling smoothly. Backed by Luth-AR’s reputation for practical, well-made AR components, it delivers dependable performance in a simple, robust design.

Key Features:

• Manufacturer: Luth-AR
• Model: 308-BT16
• Caliber: .308 Winchester / 7.62x51mm NATO
• Condition: New
• Finish Color: Manganese Phosphate
• Unique Features: Cotter-Style Oversized Firing Pin Retaining Pin For AR-10 / .308 AR Bolt Carrier Groups
• Weight: 0.01 lbs