This BCM AR-15 Total Decrease Receiver W/A5 BUFFER incorporates a BCM intermediate size receiver extension as well as a Vltor A5H0 buffer to provide the many benefits of the Vltor A5 buffer system. The lower receiver is machined from 7075-T6 aluminum forgings with a Mil-Spec difficult coat anodized complete https://a5buffertube63826.getblogs.net/61211349/ar-fifteen-full-lower-receiver-w-a5-buffer-bcmgunfighter-stock