The Rugged Suppressors Obsidian9 is a modular 9mm suppressor for pistols and pistol-caliber carbines, finished here in black (Rugged Suppressors part no. OBS0009). The ADAPT module gives you two lengths in one suppressor, 7.8 inches in the standard setup and 4.85 inches in the short setup. Rugged builds it with 17-4 stainless baffles, a hard coat anodized aluminum tube and a stainless mount, then Cerakotes the whole suppressor. A 1/2×28 piston comes in the box for common threaded 9mm barrels. It suits a range pistol, a 9mm carbine or a duty-style PCC.

Key Specifications

• The primary rating is Belt Fed Rated for pistol calibers up to 9mm, so it keeps up with sustained fire.
• It is also rated for .300 BLK subsonic with an 8-inch or longer barrel, a rifle-caliber use on short platforms.
• It is rated for 9×39 subsonic with an 8-inch or longer barrel, a niche subsonic cartridge that few cans cover.
• It is rated for .350 Legend with a 16-inch or longer barrel, for hunting-style rifles.
• Standard configuration length is 7.8 inches, the longer setup for the most sound reduction.
• Short configuration length is 4.85 inches, a compact length that suits short barrels.
• Standard configuration weight is 12.7 ounces, light for a full-size suppressor.
• Short configuration weight is 8.7 ounces, which keeps a pistol muzzle from getting heavy.
• Body diameter is 1.37 inches, a slim body that stays out of the sight line on most pistols.
• Construction is a hard coat anodized aluminum tube with 17-4 stainless baffles and mount, combining low weight with a steel blast-facing core.

Frequently Asked Questions

What thread does the Obsidian9 come with? It includes a 1/2×28 piston, the common thread pitch on threaded 9mm barrels.

How do I change the length? Attach or remove the ADAPT module to move between the 7.8-inch standard length and the 4.85-inch short length.

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 Rugged Suppressors Obsidian9 9mm Modular Pistol Suppressor, Black

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 Rugged Suppressors‘s suppressors and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.