The Rugged Suppressors 3-Lug Adapter is a precision-engineered mounting solution designed to provide fast, secure attachment for Rugged pistol suppressors on 13.5x1 LH threaded barrels. Built specifically for use with Rugged's Obsidian series, this adapter delivers reliable lockup, repeatable alignment, and effortless on-and-off convenience-ideal for shooters running suppressed pistol-caliber carbines or handguns. Precision machining ensures solid engagement and concentric alignment, helping maintain accuracy and prevent baffle strikes. The 13.5x1 LH thread pitch is commonly found on European-threaded pistol barrels, expanding compatibility for suppressed setups that require left-hand threading. Finished in black and built to Rugged's durability standards, this adapter is designed to withstand repeated mounting cycles while maintaining secure retention. When paired with a compatible 3-lug muzzle device, it provides a clean, professional mounting solution that complements Rugged's reputation for rugged, no-nonsense suppressor accessories. Specifications: Manufacturer: Rugged Suppressors Product Type: 3-Lug Adapter Thread Pitch: 13.5x1 LH Finish: Black Compatibility: Rugged Obsidian series suppressors Mount Type: 3-lug quick-attach Use Case: Suppressed pistols and pistol-caliber carbines Accessory Category: Suppressor mounting accessory