SRD556-QD 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 STOCKSig Silencer SRD556-QD 5.56mm, Taper Lok W/ Fast Attach Muzzle Device, 1/2×28, Black $632.49 Original price was: $632.49.$398.47Current price is: $398.47. Add to cart