The Rugged Suppressors 9mm 3 Lug Adapter features the patented Go/No Go Gauge. The No Go/Go Gauge provides confirmation that your suppressor is properly attached, for a surprise-free shooting experience. This 3 Lug Adapter is compatible and used in conjunction with the Obsidian9 3 Lug Mount. Made to 9mm H&K specifications. NOT compatible with .45 ACP. Red Locktite & 20-25 ft-lbs to torque the 3 Lug Adapters onto your barrel.

Available Thread Pitch Options:

• 1/2x28
• 5/8x24
• 1/2x36
• M13.5x1 LH