The CGS Suppressors Mod 9 SK 9mm suppressor is the short version of the MOD9 pistol can, designed and manufactured in Artesia, New Mexico (brand part no. CGSMOD9SK9MM). At 4.8 inches and 6.6 ounces it keeps a carry-sized or duty pistol balanced with the can mounted. Inside are second-generation Orion baffles, and CGS cuts its pistons specifically to limit first-round pop. The baffles and the shroud shield the tube from carbon and debris, so cleaning is easier, and a disassembly tool is included. A 1/2×28 piston comes with it.

Key Specifications

• Overall length is 4.8 inches in the SK configuration, short enough to keep a suppressed pistol compact.
• Weight is 6.6 ounces, light enough that the pistol still points naturally with the can installed.
• Width is 1.37 inches, a size that clears most pistol sights.
• The tube is 7075-T6 aluminum, a strong alloy that keeps weight off the muzzle.
• The main baffles are 7075-T6 aluminum in CGS’s second-generation Orion design.
• The blast baffles are 17-4 stainless steel, the material that takes the first hit of muzzle gas.
• The piston assembly is 17-4 stainless steel and ships as a 1/2×28 piston for standard 9mm barrels.
• The piston offers 12 points of adjustment for impact shift, so the can can be indexed to your zero.
• CGS rates it up to .300 Blackout subsonic, beyond the 9mm pistol loads it is built around.
• Aluminum parts carry a Type III hardcoat anodized finish for a durable dark matte surface.

Frequently Asked Questions

How much shorter is the SK than the full-size Mod 9? CGS lists the SK at 4.8 inches and 6.6 ounces, against 7.7 inches and 10 ounces for the full-size Mod 9. Both share the 1.37-inch width.

Does it come with a piston? Yes. It ships with a 1/2×28 piston, and the piston gives 12 points of adjustment for impact shift. CGS also includes a disassembly tool for cleaning.

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 CGS Suppressors Mod 9 SK 9mm Pistol Suppressor, 4.8-Inch

A short pistol can with stainless blast baffles and an adjustable piston suits a 9mm that gets carried as much as it gets shot. 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 CGS Suppressors‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.