H2 Buffer (4.6-4.7 oz)

The H2 buffer represents the industry-standard solution for managing increased bolt carrier velocity in suppressed AR-15 configurations. Weighing between 4.6 and 4.7 ounces, the H2 buffer adds approximately 1 ounce over the standard carbine buffer, providing the additional mass needed to slow the bolt carrier group and reduce the violent cycling common when running a suppressor. This weight increase translates to noticeably softer recoil impulse and reduced wear on internal components.

Internally, the H2 buffer contains one steel weight and two tungsten weights, separated by rubber or neoprene spacers to dampen vibration. This hybrid construction provides the perfect balance of mass and cost-effectiveness, delivering reliable performance across a wide range of barrel lengths and gas system configurations. The buffer is designed to drop into any mil-spec carbine buffer tube without modification, making it an accessible upgrade for shooters transitioning to suppressed shooting.

The H2 is particularly well-suited for mid-length gas systems on 14.5-16 inch barrels, where it effectively tames overgassing without risking short-stroking issues. When paired with an enhanced buffer spring like the Sprinco Blue, the H2 creates a balanced tuning solution that improves reliability while maintaining consistent ejection patterns. For most suppressed 5.56 NATO rifles, the H2 buffer serves as the ideal starting point before considering heavier alternatives.