The Geissele Super 42 Braided Wire Buffer Spring and Buffer Combo is the perfect way to improve the function and reliability of your AR-15. Based on the design of the legendary German MG42 machine gun, this 3-strand braided buffer spring is much better at absorbing energy and dampening harmonics for a smoother, more reliable operation. Also included is a heavy carbine buffer, making this an essential upgrade for any AR-15 owner.
Note: This combo is not suggested for use with 300 Blackout subsonic ammunition. For use with AR-15 Carbine receiver extensions only, will not work with A5 length or rifle length extensions.