Je Machine Tech A2 Buffer Tube Combo Kit Features The Je Machine Tech A2 Buffer Tube Combo Kit is constructed from 6061-T6 aluminum chosen for its combination of strength and long-term durability under the repeated cycling of an AR-platform rifle. Every cut on the 10 inch buffer tube is meticulously made to meet mil-spec requirements ensuring compatibility with mil-spec stocks and other components on a build. The kit s precisely engineered spacer screw ensures perfect alignment between the buffer tube and the rifle stock which makes installation straightforward rather than a fight with misaligned parts. This attention to spec matters most on retro builds where period-correct fit and function are the whole point of the project. This rifle length buffer system pays tribute to the M16A1 and M16A2 service rifles which introduced the smaller 5.56 and .223 cartridge along with a straight-through buffer system that noticeably reduced felt recoil compared to earlier designs. Whether built into a dedicated retro rifle or into a modern precision rifle setup the system is engineered to deliver reliable performance for years. The 5-piece combo kit includes the A2 buffer tube screw hardware needed for a complete correct installation. This kit is a solid foundation for builders who want their AR-15 or AR-10 project to reflect Eugene Stoner s original design lineage. JE Machine Tech A2 Buffer Tube Combo Kit Specifications Manufacturer: JE Machine Tech Model: A2 Buffer Tube Combo Kit Compatible Hosts: AR-15/AR-10 Rifle Platforms Color: Black Material: Aluminum Length: 10 Weight: 3.20-5.10 oz Hardware: A2/A1 Buffer Tube Screw No. of Pieces: 5 Available At: GrabAGun