Model: 637

Product Manufacturer AAC (Advanced Armament) American Classic American Tactical / ATI Armscor/Rock Island Armory Arsenal Firearms ATA Arms ATN B&T Banish Barrett Firearms Beretta Bergara Bersa Blue Force Gear Bond Arms Browning Burris Bushnell Byrna Technologies CANIK Century Arms CGS Group Charles Daly Chiappa Charter Arms Chiappa Firearms Christensen Arms CMMG Colt Comp-Tac Victory Gear Connecticut Valley Arms / CVA Crimson Trace Crux Ordnance CUGIR CZ-USA Dan Wesson Daniel Defense Davey Crickett Dead Air Silencers Derya Diamondback Firearms EOTech Eternity Case European American Armory / EAA Corp Fierce Firearms FN America / FN Herstal Fobus Franklin Armory Gemtech GForce Arms Glenfield Glock Heckler & Koch / H&K Henry Repeating Arms Heritage Arms Hi Point Firearms High Speed Gear Hogue HOWA Howard Leight HUXWRX Safety Company Inland Manufacturing IWI - Israel Weapon Industries IZHMASH JTS Kahr Arms KAK Keltec Kimber KOTA ARMS Kriss TDI Legacy Sports International Leupold Live Free Armory LWRC Magnum Research Magpul Industries Magview Marlin Military Arms Molot Mossberg North American Arms Otis Technologies Patriot Ordnance Factory Pointer Pro-Shot ProMag Proof Research Q LLC Radian Weapons Retay USA Riton Rizzini Rossi ROST MARTIN Ruger / Sturm, Ruger & Co. Rugged Suppressors SAR Arms Savage Schmeisser Seekins Precision Shadow Systems Sig Sauer Silencer Co Simmons Optics Smith & Wesson / S&W Spandau Springfield Armory Streamlight Surefire Tapco Taurus Taylors and Company Thompson Center Tikka Tisas Tokarev Trailblazer Firearms Trijicon TriStar Arms Troy Industries Turner Fabrications Viridian Walther Arms Warne Weatherby Wilson Combat Winchester Wise Arms Yankee Hill Machine Zastava Arms