The WITT Mod-1 quick disconnect 5.56mm suppressor is the QD version of Witt Machine’s Ultra Compact Suppressor line, in 416 stainless steel with a high-temp black Cerakote finish (brand part no. MOD1). WITT says the Mod-1 improves thermal dispersion over its predecessors and adds thicker wear surfaces. Each one ships assembled with a Rearden Manufacturing Atlas (HT) ASR threaded mount and an SPB (HT) muzzle device, and the can can be configured for any aftermarket QD setup that uses 1.375-24 threads. It is 1-5/8 inches in diameter, 5-1/4 inches long and 13.7 ounces. It is built for a shooter who wants a short, full-auto-rated can that moves between rifles.

Key Specifications

• The caliber is 5.56mm, the AR-15 chambering this Mod-1 is set up for.
• The included mount is threaded 1/2-28, the standard AR-15 muzzle thread.
• Length is 5-1/4 inches, short enough to keep a carbine handy.
• Diameter is 1-5/8 inches, a compact body for the caliber.
• Weight is 13.7 ounces, a modest load on the muzzle.
• The material is 416 stainless steel, finished in high-temp black Cerakote.
• It ships with a Rearden Atlas (HT) ASR threaded mount and SPB (HT) muzzle device, assembled and ready to install.

Frequently Asked Questions

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 I use a different QD system with the Mod-1? Yes. WITT says the Mod-1 can be configured to fit any aftermarket QD setup that uses 1.375-24 threads.

Is it full-auto rated? Yes. WITT lists the Mod-1 as full auto rated with no barrel restriction, and designed with no blowback through the charging handle.

Buy the WITT Mod-1 Quick Disconnect Suppressor, 5.56mm

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 WITT‘s suppressors lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer. The Rearden ASR mount makes it easy to move the can from one rifle to the next.