Luth-AR 308 Firing Pin Silver. 308 Firing Pin SKU: 308-BT-14 Specifications for Luth-AR Firing Pin .308: Manufacturer: Luth-AR Color: Silver Finish: Chrome Fabric/Material: Stainless Steel Steel Caliber: .308 Winchester Gun Make: AR Platform Gun Model: AR-10 Projectile Caliber: .308 Caliber Features of Luth-AR Firing Pin .308: Shipping Weight .25 lbs Shipping Dimensions 4 x .25 x .25 in Package Contents: Luth-AR Firing Pin .308 What firearm models does the manufacturer say Luth-AR Firing Pin .308 is compatible with? The manufacturer suggests that Luth-AR Firing Pin .308 is compatible with AR-10Luth-AR 308-BT-14: 308 Firing Pin Silver