An innovative multi-caliber suppressor with patented and proven Flow-Through and Torque Lock 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 helical coil and core deflector design. It is full-auto rated and compatible on 5.56 17 HMR and 5.7 platforms. The integrated flash cap geometry effectively mitigates flash as part of its overall signature reduction functionality. - WEIGHT: 11.8 oz / 335 g - OVERALL LENGTH: 5.5 in / 14.0 cm - DIAMETER: 1.6 in / 4.0 cm - SOUND PRESSURE LEVEL: avg. 143 dB at the shooter's ear avg. 18 dB reduction - BOLT VELOCITY: 1% from baseline with Flash Hider-QD (measured with 10.3 Daniel Defense w/XM193) - LENGTH ADDED TO BARREL: 4.9 in / 12.4 cm - LENGTH ADDED TO MUZZLE DEVICE: 3.8 in / 9.6 cm - DURABILITY: Passes minimum of 6 SOCOM Reliability Stress Test Cycles - COATING: C-Series Cerakote Matte Black - MATERIALS UTILIZED: 17-4 Stainless Steel - SERVICE LIFE: 10000 rounds threshold with objective 20000 rounds. Detailed cleaning will help ensure product performance and service life are not compromised.