This BCM AR-fifteen Full Decreased Receiver W/A5 BUFFER incorporates a BCM intermediate duration receiver extension in addition to a Vltor A5H0 buffer to offer the advantages of the Vltor A5 buffer procedure. The lower receiver is machined from 7075-T6 aluminum forgings that has a Mil-Spec difficult coat anodized finish https://archerefirv.tinyblogging.com/ar-15-full-decreased-receiver-w-a5-buffer-bcmgunfighter-stock-72422642