AAC HUB2K 5.56 and 6mm ARC Inconel HUB Black Suppressor The AAC HUB2K is a modern take on the legendary M4-2000, 3D printed from DMLS 718 Inconel for 5.56 and 6mm ARC rifles, now available at BattleHawk Armory. Rated for 5.56/.223 and 6mm ARC; full-auto rated DMLS 718 Inconel 3D-printed construction Oversized 6mm baffles reduce backpressure and end-cap strikes on SBRs 1.375-24 HUB rear threads; ships with 1/2x28 direct-thread mount with built-in brake 34 dB reduction per AAC; 6.04" and 12.7 oz Now available at BattleHawk Armory AAC used DMLS printing to make the HUB2K stronger and lighter than the M4-2000 without giving up sound performance. HUB-standard threads let you run any HUB-style mount, and the high-temp Cerakote handles sustained fire. Grab yours today at BattleHawk Armory. Specifications Manufacturer: Advanced Armament Co. Model: HUB2K MFR#: 65047 UPC: 850036491972 Caliber: 5.56/.223, 6mm ARC Material: DMLS 718 Inconel Mount: 1.375-24 HUB; 1/2x28 direct-thread mount included Finish: Black high-temp Cerakote OAL: 6.04" with direct-thread mount Diameter: 1.5" Weight: 12.7 oz Sound Reduction: 34 dB (AAC, 14.5" 5.56, XM193) Full-Auto Rated: Yes NFA Item: Suppressor, ATF Form 4 transfer required Order your Advanced Armament Co. HUB2K for sale at BattleHawk Armory and start your Form 4 today.