Spikes Tactical SLA00T2 ST-T2 Tactical Buffer is designed to deliver a firmer recoil impulse. It is intended for machine guns, suppressed weapons, and rifles that suffer from overgassing. It is maintenance-free with no fluids to leak. The buffer weighs 115 g (4.05 oz). The body is CNC machined from solid billet aluminum and finished with matte black anodizing and laser engraving of the Spike's Tactical Logo. Each ST-T2 buffer contains three sliding tungsten weights and a Mil-Spec bumper. The ST-T2 eliminates bolt bounce, helps muzzle rise in full-auto, and reduces felt recoil. It’s designed for .223/5.56 but works in all calibers.