RUGGED SUPPRESSORS OBSIDIAN9 3 LUG ADAPT 13.5x1L

Description

The Rugged Suppressors Obsidian9 3 Lug Adapter is built for shooters running an HK-pattern host — the kind of pistol or sub-gun with a proprietary 3-lug muzzle rather than a threaded barrel. The adapter threads onto a 13.5×1 LH muzzle and converts it to accept the Obsidian9’s 3 Lug Mount, letting you swap the suppressor on and off without unwinding threads every time. That matters in any context where a conventional threaded attachment would slow you down or require tools.

Where the system earns its keep is in the attachment confidence it provides. Rugged incorporated Go/No Go markings directly into the design, so you can verify at a glance that the suppressor has rotated fully into its locked position rather than guessing by feel. That kind of visual confirmation is genuinely useful when you’re working quickly or in low light. Cheaper Than Dirt notes that Rugged recommends Red Loctite and 20–25 ft-lbs of torque when seating the adapter on the host — worth knowing before installation, since a loose adapter undermines the whole system.

Construction is straightforward and the adapter ships ready to use; no additional mounting hardware is required beyond what’s already on a compatible Obsidian9. The adapter’s weight of 0.12 lbs means it adds almost nothing to the host weapon before the suppressor goes on. If you already own an Obsidian9 and your host uses an HK-style 3-lug muzzle, this is the piece that makes the combination work.

Shipping and availability: This item must ship to a licensed FFL dealer for transfer.