The Rugged Suppressor 3-Lug Adapter OA011 is a 11/16x24 threaded muzzle device built for .45 caliber pistols running Rugged's 3-Lug suppressor platform. If you're building a .45 ACP suppressed setup—whether you're shooting a 1911, modern pistol, or a dedicated host—this adapter threads directly onto your barrel and interfaces with Rugged's 3-Lug Mount to secure your suppressor repeatably and reliably. It's engineered for the shooters who want confirmation that their can is locked in tight before they press the trigger.

One standout feature sets this adapter apart: the integrated Go/No Go Gauge. Instead of guessing whether your suppressor is fully seated, this gauge gives you tactile and visual confirmation that the connection is solid. That peace of mind matters on the range, in the field, or at the competition line. No surprises—just a locked-up, secure attachment every time you mount your suppressor.

Installation is straightforward: apply Red Loctite or Rocksett to the adapter's threads, then torque it onto your barrel to 20–25 foot-pounds. Once torqued, you'll mate it to Rugged's .45ACP 3-Lug Mount, and you're ready to shoot suppressed. The 11/16x24 thread pitch is the standard for many modern .45 ACP barrels, making this a practical choice for owners of factory and aftermarket pistol slides alike.