Description
The Rugged Suppressors Obsidian Fixed Mount is built for carbine and subgun platforms with fixed, non-reciprocating barrels — the kind of host where a spring-loaded piston booster serves no purpose and can actually work against consistent suppressor performance. On a fixed-barrel host, the booster assembly that comes standard with the Obsidian 45/9 is unnecessary; this mount replaces it entirely, giving you a direct, solid connection between the suppressor and the barrel. That rigidity matters: a fixed interface eliminates the movement inherent in a booster-equipped setup, which can tighten up the mechanical relationship between the can and the host and reduce any wobble or play at the muzzle.
Installation is straightforward for anyone already running an Obsidian 45 or Obsidian 9 — the Fixed Mount threads onto a half-inch by 28 TPI muzzle, the standard thread pitch found on a wide range of pistol-caliber carbines and subguns chambered for 9mm and similar cartridges. No additional adapters or shims are needed for compatible hosts. If you are running an Obsidian on a blowback or fixed-barrel platform and have been making do with the standard booster, this is the correct mounting solution for that application. It is a purpose-built accessory, not a workaround.
Shipping and availability: This item must ship to a licensed FFL dealer for transfer.




