Armaspec SMB-H Buffer Kit Features The Armaspec SMB Buffer Kit Gen 3 is centered on the Sound Mitigation Buffer a superior upgrade in place of the OEM Mil Spec buffer and spring weights found in a standard AR-15. At 3.8 ounces the SMB buffer is engineered to keep the buffer spring from rubbing against the inner wall of the buffer tube which reduces unwanted noise and vibration during cycling. This smoother quieter operation improves the overall shooting experience by minimizing the mechanical rattle common in many AR-15 builds. The buffer s adjustable spring weight design gives builders additional control over the rifle s recoil impulse and cycling characteristics. The kit includes a 6 position buffer tube a steel castle nut and an endplate alongside the SMB buffer itself giving the builder every component needed to complete this portion of an AR-15 build in a single purchase. Because the kit is engineered specifically to fit AR-15 pattern firearms compatibility concerns are minimized compared to sourcing individual parts separately. This all in one approach saves time for builders working through a full rifle assembly or upgrading an existing platform. Finished in Black with silver accents the Armaspec SMB Buffer Kit Gen 3 is a practical upgrade for sale at GrabAGun. Armaspec SMB-H Buffer Kit Specifications Manufacturer: Armaspec Model: SMB-H Type: Buffer Tube Complete Assembly Color: Black / Silver Compatible Hosts: AR-15 Pieces: 4 Weight: 3.8 oz Available At: GrabAGun