New from Midwest Industries, the Stock Tube with Buffer Tube Adaptor! This small but mighty addition allows you to attach a Mil-Spec buffer tube to your next build! Constructed from 6061 aluminum, this clean and compact design only weighs in at 2.4oz! Super easy installation Constructed from hard coat anodized 6061 aluminum Allows for attachment of Mil-Spec Buffer Tube Super clean, compact design Overall Length: 2 inches Weight: 2.4 oz. 100% made in the USA Mfg: Midwest Industries