Leapers UTG PRO gears is designed and made right here is the USA. This particular item is a popular AR-15 Pistol Receiver Extension Buffer Tube featuring a 1.2 inches Outside Diameter. The Tube is precision machined from 7075-T6 Aircraft Grade Aluminum and features a Type III Class II Hard Coat Anodized Finish. The Interior of the tube features a dry film lube coating which promotes smoother and more reliable cycling. The pistol buffer tube will accept standard AR-15 carbine type buffers and springs which are sold separately. The tube itself features a matte black finish. Features: Matte black finish AR-15 pistol receiver extension buffer tube Compatible with standard AR-15 type buffers and springs (sold separately)