This BCM AR-15 Complete Lower Receiver W/A5 BUFFER incorporates a BCM intermediate duration receiver extension as well as a Vltor A5H0 buffer to provide the key benefits of the Vltor A5 buffer program. The reduce receiver is machined from 7075-T6 aluminum forgings with a Mil-Spec tricky coat anodized end https://ricardoswxyw.blogitright.com/28840096/ar-fifteen-entire-decrease-receiver-w-a5-buffer-bcmgunfighter-inventory