- Fits carbine-length AR-10 / .308 / large-frame semi-automatic buffer tubes
- Compatible with A2 rifle-length tubes when used with an A1/A2 spacer adapter (sold separately)
- All-in-one captured recoil system — buffer, spring, and guide combined
- High-strength aluminum body with heat-treated steel internals
- Reduced noise vs. a traditional buffer + spring stack
!