The Armaspec SMB kit is your comprehensive solution for rifle builds, featuring our advanced SMB (sound mitigation buffer) designed to elevate your shooting experience. Replacing standard OEM Mil-Spec buffer springs and weights, the SMB provides enhanced sound suppression and recoil management. This kit includes all essential components necessary for assembly, ensuring seamless installation and optimal performance. Whether for new builds or upgrades, the Armaspec SMB kit offers precision engineering and improved functionality, delivering a quieter and more controlled shooting experience.