Aero precision ar-15 recoil buffer - Aero Precision AR-15 Recoil Buffer

Had to downgrade to an H from an H2 recoil buffer after putting an adjustable gas block on my Aero Build. The H recoil buffer fixed the short stroking and failure to lock back the bolt after last round issues. H2 was a bit to heavy I guess. Works perfectly now thanks to the new recoil buffer. Aero Precision makes a good recoil buffer and would definitely recommend.