This BCM AR-fifteen Complete Lessen Receiver W/A5 BUFFER incorporates a BCM intermediate size receiver extension as well as a Vltor A5H0 buffer to deliver the main advantages of the Vltor A5 buffer system. The lower receiver is machined from 7075-T6 aluminum forgings using a Mil-Spec hard coat anodized complete https://a5-buffer-system-kit64700.webbuzzfeed.com/29251734/ar-fifteen-comprehensive-lower-receiver-w-a5-buffer-bcmgunfighter-stock