Spin Rate Engineering demo this M-Lok Adapter for Airsoft Steyr AUG Barrels which he designed himself... "This adapter replaces the stock vertical grip on an airsoft AUG and provides 2 M-lok slots at the 3, 6, and 9 o'clock positions. The adapter locks into place with the same pin as the vertical grip. It features the barrel clamp for added stability especially when used with M-lok bi-pods or sling mounts.