Home / Parts / Buffer Tubes and Kits / Toxic Mil-Spec Steel end plate View cart “AR RECEIVER BUFFER TUBE KIT KIT MK2” has been added to your cart.Continue shopping Toxic Mil-Spec Steel end plate$399 Toxic Mil-Spec Steel end plate quantity Add to cart Category: Buffer Tubes and Kits Product ID: 2403 Description Description Mil-Spec AR-15 Receiver Extension / Buffer Tube End Plate Related products Toxic Mil-Spec 3 oz carbine buffer $999 Sale! Complete Pistol Buffer Tube assembly $6999 $3495 Toxic Mil-Spec buffer tube (6 Position) $1795 Sale! TOXIC ARMS COMPLETE BUFFER TUBE KIT W/ SPRING END PLATE CASTLE NUT $5999 $3999