The Daniel Defense EZ Carbine Mount attaches quickly to any AR15/M4 with a collapsible buttstock and Mil-Spec Receiver Extension (Buffer Tube). It is CNC machined from 6061 T6 Aluminum and has a durable Type III Mil-Spec Hard Coat Anodized finish. Heavy duty push button QD swivel attachment allows for ambidextrous functionality as the QD swivel can be swapped from the left attachment point to right with the push of a button and rotation is limited to ensure the sling does not become twisted or tangled. Perfect for Law Enforcement Agencies and Military Units who must comply with restrictions on the modification of issued weapons or any user who wants a simple yet durable way to ad Mfg: Daniel Defense SPECS: Mount - 6061 T6 aluminum, hardcoat anodized, matte black.