Sig Sauer SRD556 Monocore Stainless 5.56mm Nato Suppressor MFG # MIL-SRD556-MONO

Sig Sauer SRD556 Monocore Stainless 5.56mm Nato Suppressor MFG # MIL-SRD556-MONO



The SRD556 is an Inconel 718 direct thread suppressor. Inconel 718, a Nickel Alloy Stainless Steel, provides the highest level of durability, particularly with short-barreled hosts using supersonic ammunition. The 1/2"x28 tpi threads match the vast majority of modern shorting rifles in .223/5.56mm on the market today. The rear mount has wrench flats to torque the silencer to the barrel. These wrench flats can be used as a location to "pin and weld" the silencer to make a shorter barrel over 16" in total length.







Threads: 1/2-28 tpi

Enter your ZIP code for an exact shipping cost on this item. Hazardous-materials fees, where they apply, are included in the total shown.

Read our full shipping policy

Firearms must ship to a licensed dealer (FFL), who completes the transfer and the required background check when you collect the item.

How FFL transfers work · Terms of sale · Product and legal restrictions