The Q Southpaw 5.56 NATO Suppressor (Q part no. SIL-SP-QUICKIE-556) is Q’s dedicated 5.56 silencer made from a smart mix of Inconel and steel, because not every part of a suppressor lives the same life. The blast baffle and end cap are Inconel, built to handle the punishment where it matters most, and the rest of the body is steel for strength and durability. It is a hybrid approach on purpose: the right material in the right place. At 6 inches and 13.2 ounces, it suits shooters who put hard 5.56 use through a compact can.

Key Specifications

• The caliber is 5.56 NATO, the cartridge the Southpaw was built for.
• Length is 6 inches, compact enough for a carbine.
• Weight is 13.2 ounces.
• Outer diameter is 1.75 inches.
• Construction is stainless steel and Inconel, using each metal where it works best.
• The blast baffle and end cap are Inconel, built for the heat at the front of the can.
• The rest of the body is steel, for strength and durability.
• The finish is black nitride.
• The mount is Quickie Fast-Attach, compatible with Cherry Bomb and Rear End muzzle devices.

Frequently Asked Questions

What makes the Southpaw different from an all-steel suppressor? Its blast baffle and end cap are Inconel, while the rest of the body is steel, so the hardest-working parts get the most durable metal.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

What muzzle devices does it work with? It uses Quickie Fast-Attach mounting, listed by Q for the Cherry Bomb and Rear End.

Buy the Q Southpaw 5.56 NATO Suppressor, Inconel and Stainless Steel, Quickie

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through Q LLC‘s suppressors lineup and our Lubbock, Texas team will handle the transfer and it ships fast to your Class 3 dealer.