-Buffer Tube Milling File (meant to shave down the top of the AR-ten Buffer tube so which the charging manage can crystal clear on some upper/reduced combos) The bottom from the Ghost Gunner 3 is empty. There is no ground plate so chips will slide the many way by means https://ghostgunnerforsale97271.blazingblog.com/32992034/ghost-gunner-3-an-overview