.308 Carbine Buffer is a necessary component for shooters wishing to use their AR-15 carbine stock on their .308 platform rifle. Full sized AR-15 Buffers are too-long for AR308 bolts to properly cycle, but this heavy (3.8oz) shortened bolt allows for reliable cycling! Modified AR-10 Buffer Spring is recommended for maximum reliability.For AR-15 Carbine buffer tubes (Mil-Spec / Commercial) ONLY. Will not work with Rifle (A1/A2) or GI 8″ Receiver Extensions. Type .308 Short Buffer Extension AR-15 Carbine Length 2.5 Dimensions 2.5″ L x 1 Weight 3.7 oz Need buffer for 308 A2 fixed stock, see the link below LR-308 LR308 AR10 AR-10 A2 Buffer Tube Kit
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