The ATI Outdoors AR-10 .308 Mil-Spec Buffer Tube Assembly, Black is a complete rear buffer-system package for compatible AR-10 builds (ATI part no. A.5.10.2552). It uses a military-specification buffer tube sized for mil-spec adjustable stocks, so a new build or a stock upgrade does not require buying each part separately. The tube is made from Type III anodized 6061 T6 aluminum, and ATI includes the castle nut and locking ring. ATI notes that AR-10 and AR-15 buffer systems should not be treated as interchangeable, so this assembly is intended for AR-10 .308 configurations.

Key Specifications

• The assembly is made for AR-10 .308 configurations that use a military-specification receiver extension.
• The buffer tube is a military-spec diameter that accepts mil-spec adjustable stocks.
• The tube is Type III anodized 6061 T6 aluminum, a hard finish that resists wear.
• It includes a steel, military-grade e-coated castle nut and a locking ring.
• It also includes an AR-15 recoil plug and a buffer spring.
• ATI backs it with a limited lifetime warranty, and it is made in the USA.

Frequently Asked Questions

Is this the same as an AR-15 buffer tube? ATI states that AR-10 and AR-15 buffer systems should not be treated as interchangeable, and this assembly is intended for AR-10 .308 configurations.

What stock does it take? It is a military-specification buffer tube, so it takes mil-spec adjustable stocks.

What is included? The assembly comes with the buffer tube, a steel military-grade e-coated castle nut, a locking ring, an AR-15 recoil plug and a buffer spring.

Buy the ATI Outdoors AR-10 .308 Mil-Spec Buffer Tube Assembly, Black

Buying the tube, nut, ring and spring together is the simplest way to finish the rear end of an AR-10 build. Browse more ATI Outdoors gear in AR buffer system parts, or order it from our Lubbock, Texas gun shop for fast, insured shipping.