An innovative multi-caliber suppressor with patented and proven Flow-Through(R) and Torque Lock(R) technology. 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(R) 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(TM) Cap geometry effectively mitigates flash as part of its overall signature reduction functionality. Compatible with Muzzle Brake-QD 556 and Flash Hider-QD 556.