The Armaspec SRS Buffer Kit, Carbine, Gen 4 (brand part no. ARM263-C) is a complete enhanced buffer tube kit that provides everything needed to mount a stock assembly onto an AR-15 lower receiver. Armaspec built the kit around a mil-spec 7075-T6 six-position buffer tube along with a steel castle nut and end plate, then paired it with the company’s Stealth Recoil Spring (SRS) multi-stage buffer system. That SRS buffer keeps the spring from rubbing the inner wall of the tube for quieter cycling, while its multi-stage design also helps reduce felt recoil over a standard buffer. Because the kit bundles the tube, hardware, and buffer together, it is a straightforward way to upgrade an entire buffer system in one purchase rather than sourcing each part separately.

Key Specifications

• Includes a mil-spec 7075-T6 six-position buffer tube for standard AR-15 collapsible stock compatibility.
• Comes with a steel castle nut and end plate needed to properly mount the buffer tube to the receiver.
• Bundles Armaspec’s Stealth Recoil Spring (SRS) multi-stage buffer, which keeps the spring from rubbing the tube wall.
• Uses the SRS system’s second recoil-reduction stage to help cut felt recoil over a standard buffer setup.

Frequently Asked Questions

What does this kit include? A mil-spec 7075-T6 six-position buffer tube, a steel castle nut and end plate, and Armaspec’s SRS multi-stage buffer and spring.

Is this everything needed to mount a stock? Yes, it provides all the hardware required to mount a compatible stock assembly onto an AR-15 lower receiver.

Buy the Armaspec SRS Buffer Kit, Carbine

Build out a complete, quieter-cycling buffer system in one purchase instead of sourcing the tube, hardware, and buffer separately. Browse Schaefer Defense’s small AR-15 parts and order from our Lubbock, Texas gun shop for fast shipping.