Q The Lefty suppressor is a hybrid-construction can for 5.56 NATO and 6mm ARC, built around a three-piece design with a 3D-printed core (brand part no. SIL-TL-QUICKIE-556). Q describes it as a low-backpressure, no-flash suppressor made to keep rifles that were not designed alongside a silencer running reliably. It weighs 14.2 ounces in a 6.5-inch body and mounts through the QUICKIE fast-attach system. That makes it a practical choice for a duty or field carbine where less gas in the shooter’s face matters as much as the sound reduction.

Key Specifications

• The caliber range is 5.56 NATO and 6mm ARC, the two cartridges Q rates it for.
• Weight is 14.2 ounces, light enough to ride on the end of a carbine without upsetting its balance.
• Length is 6.5 inches, a compact body for a rifle suppressor.
• Diameter is 1.625 inches, which keeps the profile slim.
• Construction is a stainless steel tube with a 3D-printed stainless steel core that integrates the endcap.
• The finish is black nitride, a hard surface treatment for long wear.
• The mount is QUICKIE fast-attach, using Q’s Cherry Bomb or Rear End interface.
• The design is three-piece, a mount, a tube and a printed core, which lets it be rebuilt if it takes damage.
• Q’s Low Blow flow path vents gas forward in a controlled way to reduce port pressure and cut gas to the shooter.
• It is full-auto rated with no barrel restrictions, according to Q.

Frequently Asked Questions

Does it reduce gas in the shooter’s face? Yes. Q built The Lefty as a low-backpressure suppressor, with a directional flow path that reduces port pressure and cuts down the gas that reaches the shooter.

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.

Can it be rebuilt? Yes. The three-piece architecture of a mount, a tube and a 3D-printed core means it can be reconstructed if it takes damage, which Q points to for duty use.

Buy the Q The Lefty 5.56 NATO / 6mm ARC Suppressor, 3D-Printed Core, 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‘s suppressor lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.