GMT-556QM View cart “Silencer, 5.56mm, GMT-556QM, (Quickmount option)” 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 STOCKSilencer, 5.56mm, GMT-556QM, (Quickmount option) $920.49 Original price was: $920.49.$828.44Current price is: $828.44. Add to cart