The Ultralight QD Endplate for AR15/M16 pattern rifles. Weighing only 6.5 grams, the endplate is machined from billet 6061-T6 aluminum with milspec 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 milspec and commercial carbine buffer tubes, requires Castle Nut for installation (not included).