HOW KAC SR 15 14.5 UPPER CAN SAVE YOU TIME, STRESS, AND MONEY.

Be aware:  This can be a completely new upper receiver.  Charlies receives these as each new in box and rake-offs from new rifles.  In 2023, most are recently removed from a full rifle, as Knights continues to be very sluggish to challenge components.The MAMS Brake is meant to diffuse high-pressure muzzle gases, which serves to boost the rifle's