GMT-300BLK View cart “Gemtech GMT-300 Suppressor .300 AAC Blackout, 6.7″” has been added to your cart. Showing the single result Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sale! IN STOCKGemtech GMT-300 Suppressor .300 AAC Blackout, 6.7″ $945.25 Original price was: $945.25.$850.73Current price is: $850.73. Add to cart