A heavy buffer, often constructed from dense materials like tungsten and manufactured by companies such as Geissele Automatics, is a component used in AR-platform firearms to manage recoil and cycling. These specialized buffers offer increased mass compared to standard buffers, slowing the cycling rate and reducing felt recoil, leading to improved control and accuracy. This effect is achieved by altering the firearm’s reciprocating mass, influencing how the bolt carrier group moves during firing.
Managing recoil and ensuring reliable cycling are crucial for optimal firearm performance. Heavier buffers provide a solution for mitigating excessive recoil, particularly in shorter-barreled rifles where increased gas pressure can lead to harsher recoil impulses and malfunctions. The added mass helps smooth out the cycling process, potentially improving reliability and reducing wear and tear on the firearm. This advancement in buffer technology has become increasingly popular amongst competitive shooters and enthusiasts seeking enhanced control and reduced muzzle rise.