RUGGED SUPPRESSORS OBSIDIAN45 3 LUG ADAPT .578×28

Description

The Rugged Suppressors Obsidian45 3 Lug Adapter is built for shooters who run a 3-lug mounting system on their host pistol and want a fast, secure suppressor attachment without threading the barrel. The 3-lug interface locks the suppressor onto the muzzle with a simple quarter-turn motion, eliminating the need to spin it on and torque it down by hand — a meaningful advantage when you are working quickly or transitioning between hosts. Because the mount seats positively without relying on thread engagement, point-of-impact shift between removal and reattachment stays minimal, which matters if you are using a weapon-mounted optic calibrated with the suppressor in place.

The .578×28 thread pattern on this adapter is the industry-standard pitch for .45 ACP pistol barrels, meaning it drops onto a correctly threaded host without modification. Rugged Suppressors incorporates a patented Go/No Go Gauge feature into the design, which lets you verify correct installation before the suppressor goes into service — a functional check built into the accessory rather than something you have to source separately. The matte black finish resists reflection and holds up to the heat cycling that comes with sustained fire. At 2.55 ounces, the adapter adds negligible mass to the muzzle end, keeping the balance of the host close to what you trained with.

This adapter is specific to the Obsidian45 suppressor platform and is the correct solution when your host pistol has a 3-lug-capable barrel but your suppressor is configured for direct thread attachment, or when you want the quick-detach capability of the lug system.