The Gemtech Nebula 5.7 suppressor is a compact, light can optimized for 5.7x28mm and equally capable with .22 LR, .17 HMR and .22 WMR (brand part no. 14166). Gemtech builds it around a 3D-printed titanium core with a stainless steel blast baffle at the front for durability and full-auto capability. It weighs 9 ounces and measures 7.1 inches long, finished in black high-temp Cerakote. A removable 1/2×28 direct thread mount sits on a Plan B mount interface, so the can also attaches to Plan B style muzzle devices. It suits a 5.7×28 pistol or PDW that also shares a can with rimfire guns.

Key Specifications

• The caliber rating is 5.7x28mm, .22 LR, .17 HMR and .22 WMR, so one can covers a PDW and rimfire hosts.
• Length is 7.1 inches, the figure on Gemtech’s spec sheet.
• Weight is 9 ounces, which keeps the muzzle load low.
• Diameter is 1.2 inches, a slim profile for a small-bore can.
• The core is 3D-printed 6Al4V titanium, which Gemtech engineered for gas flow and heat dissipation.
• The tube is 17-4PH stainless steel and the mount is 4140 steel with a QPQ finish.
• A stainless steel blast baffle takes the first hit of gas, adding durability and full-auto capability.
• The suppressor finish is black high-temp Cerakote, with an Armornite PVD finish on the mount.
• The attachment is 1/2×28 with a Plan B mount interface and a removable direct thread mount.
• It is full-auto rated, with a minimum barrel length of 3 inches for both 5.7x28mm and .22 LR.

Frequently Asked Questions

How does the Nebula 5.7 attach? It uses a removable 1/2×28 direct thread mount on a Plan B mount interface, so it threads straight onto a barrel or attaches to Plan B style muzzle devices.

Which calibers is the Nebula 5.7 rated for? Gemtech lists 5.7x28mm, .22 LR, .17 HMR and .22 WMR, with the titanium core optimized for 5.7x28mm.

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.

Buy the Gemtech Nebula 5.7 Suppressor, 5.7x28mm, Black Cerakote

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. It is a light, full-auto rated can for a 5.7×28 gun that also handles rimfire. Order through Gemtech‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.