It is designed to reduce signature without negatively impacting cycling or service life. The FLOW 556k is DMLS printed in 17-4 Stainless. It delivers superior toxic fume exposure mitigation, flash reduction, sound reduction, recoil reduction, accuracy, and repeatability by its unique Flow-Through® helical coil and core deflector design. It is full-auto rated and compatible on 5.56, 17 HMR, and 5.7 platforms. The integrated GeoFlash™ Cap geometry effectively mitigates flash as part of its overall signature reduction funtionality. Compatible with Muzzle Brake-QD 556 and Flash Hider-QD 556.