Announcing the Ultralight QD Endplate for AR-15/M16 pattern rifles. Weighing only 6.5 g the endplate is machined from billet 7075-T6 aluminum with Mil-Spec Type III anodized finish and a press-fit Titanium QD sling swivel cup. This combination of materials and finishes is ideal for weight reduction that doesn't sacrifice durability or performance. Compatible with both Mil-Spec and commercial carbine buffer tubes requires Castle Nut for installation (not included). Features: Compatible with Mil-Spec and commercial buffer tubes Castle nut not included