VELOS LBP 7.62MM SILENCER FEATURES: Low backpressure - reduces blowback on AR-15's for more fun at the range. Compatible with belt-fed machine guns. 3D printed Inconel 625, 17-4 SS, and Hoplon baffle tech for unmatched durability. No barrel restrictions. SPECIFICATIONS: Caliber: .223 REM / 5.56 NATO to .300 RUM Accessories: Charlie & ASR Weight: 16.5 oz Length: 6.4" Diameter: 1.73" Materials: 17-4 SS & Inconel 625 Ships With: Internal Charlie Flash Hider Front Cap, Charlie ASR Mount, ASR Muzzle Device, Spanner Wrench, and Charlie tool dB Readings: 138.5 Mfg: Silencerco