Check the listing for details. VG6 Precision GAMMA 300BLK Muzzle Brake 300 Blackout. Condition: New. Listed at 67.00 USD. This listing is for a VG6 Precision GAMMA 300BLK Muzzle Break***PLEASE NOTE: VG6 HAS RECENTLY CHANGED PACKAGING FROM PLASTIC CLAMSHELL TO CARDBOARD BOX. THESE BOXES ARE ARRIVING TO US NEW DIRECT FROM MANUFACUTURER ALREADY RIPPED INSIDE. THIS IS LEAVING LITTLE BITS OF PAPER RESIDUE ON THE ITEMS. THESE ARE NOT USED. THIS IS A COSMETIC FAULT WITH THE PACKAGING. The VG6 GAMMA 300BLK is a high performance muzzle brake for eliminating recoil. It was designed using state of the art engineering techniques, utilizing CFD (Computational Fluid Dynamics) and CAE (Computer Aided Engineering). This product is 100% CNC machined for optimal performance.The VG6 GAMMA 300BLK is a muzzle brake and compensator hybrid. It virtually eliminates recoil and minimizes muzzle movement. The unique combination of both braking and compensating features inspire shooter confidence and allows the shooter to make very fast follow up shots. The VG6 GAMMA 300BLK has been tuned for versatility as well. The brake has been optimized for 10.5" to 18.5" barrel lengths, but ultra-shorty SBRs and __-Pistols with shorter barrels and full sized 20" rifles will benefit greatly from the muzzle brake as well.Features:Material: 17-4ph® Heat Treated Stainless SteelFinish: BLACK NITRIDEHardness: 68 RCCaliber: 300AAC Blackout/.308 WinThread: 5/8x24 RHWeight: 1.92 ozIncludes crush washer