Great buffer and spring - Geissele Super 42 Braided Wire Buffer Spring And Buffer Combo, H2

This spring qnd buffer absolutely helps with felt recoil on 300 blk and 458 socom 350 legend tried sll calibers with regular buffer and the g 42 system...and result was the same the g 42 system made the cycling smoother and slowed down cycle rate without causing failures...felt recoil and clang u get from bolt function is greatly reduced.. i ded recommend if tou r considering..i love ny set so much i bought all three geavy buffers in the 42 system..