SRD556TI View cart “SIG Silencers SRD556Ti 5.56 Rifle Silencer 1/2×28 tpi Direct Thread” 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 STOCKSIG Silencers SRD556Ti 5.56 Rifle Silencer 1/2×28 tpi Direct Thread $537.79 Original price was: $537.79.$484.01Current price is: $484.01. Add to cart