Firearm enthusiasts in Wisconsin choose Shooters’ Sports Center as their Gemtech rifle suppressor dealer. Visit our Racine store or shop online. Expert staff is on-hand to field your questions. GEMTECH GMT-300 Rifle Suppressor .300 AAC Blackout 6.7 Inches - All NFA Rules Apply CHECK WITH YOUR GEMTECH GMT-300 Rifle Suppressor .300 AAC Blackout 6.7 Inches - All NFA Rules Apply $959.00 Is your product not in stock? Find it here!