Rugged 3-Lug Adapter

RUGGED 3-LUG BARREL ADAPTER

Transform your suppressor into a quick-detach system with the Rugged 3-Lug Barrel Adapter. This precision-machined barrel mount creates a secure, repeatable connection point that lets you attach and remove your suppressor in seconds - no thread protector fumbling and no cross-threading concerns. Engineered for subguns and pistol-caliber carbines with fixed barrels, this adapter delivers rock-solid lockup.

Each adapter includes Rugged's patented Go/No Go Gauge, which provides visual and tactile confirmation that the suppressor is properly locked to the mount.

WHY CHOOSE THIS BARREL ADAPTER

Universal 9mm Compatibility. The 9mm versions are made to the original HK 3-lug specification, ensuring compatibility with Dead Air, Griffin Armament, YHM, Resilient, Huxwrx, Q, and other major suppressor mounts that follow the same spec.

Specialized .45 ACP System. The .45 ACP adapters work exclusively with SilencerCo and Rugged .45-caliber 3-lug mounts. They are not interchangeable with the 9mm 3-lug system.

Eight Thread Pitch Options. Available in the most common barrel threading configurations, from 1/2x28 for standard 9mm barrels to 11/16x24 for .45 ACP hosts. Capitol Armory's suppressor experts can help you identify your barrel's thread pitch if you're unsure.

FEATURES

• Patented Go/No Go Gauge confirms suppressor is properly locked to the mount
• Caliber-specific design -- 9mm and .45 ACP versions are not interchangeable
• 9mm adapters follow original HK 3-lug specification for broad mount compatibility
• Steel construction with matte black finish
• Designed for fixed-barrel subguns and pistol-caliber carbines (not for tilting-barrel pistols)
• CNC-machined threads for proper alignment and secure attachment
• Rugged recommends Red Loctite and 20-25 ft-lbs of torque for installation

AVAILABLE THREAD PITCHES

9mm

• OA003 - 1/2x28
• OA004 - M13.5x1LH
• OA005 - 1/2x36
• OA006 - 5/8x24

.45 ACP

• OA008 - 5/8x24
• OA009 - 9/16x14
• OA010 - .578x28
• OA011 - 11/16x24

COMPATIBILITY

9mm and .45 ACP

• SilencerCo 3-Lug Mount
• Rugged 3-Lug Mount

9mm Only

• Dead Air 3-Lug Mount
• Griffin Armament 3-Lug Mount
• YHM HD 3-Lug Mount
• Resilient Titanium 3-Lug Mount
• Huxwrx 3-Lug Mount
• Q Erect9r Threeway 3-Lug Mount