Right or left hand sling can be used thanks to the centrally placed QD Extended end plate has a quick detach sling swivel mount to help avoid pinching your hand when using a standard sling Features an easy, drop down installation Compatible with most M4 airsoft rifles Comes complete with an M4 buffer tube that matches the color of the endplate In the Box 1X Extended End Plate 1X Enhanced Castle Nut 1X Buffer Tube 1X Mounting Hardware Specifications: Brand Lancer Tactical Build Steel, Aluminum Alloy Compatibility Most M4 Airsoft Rifles Length 7.5 Width 1.5 Color Red California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov