The HUXWRX Direct Thread Adapter (HUXWRX part no. 1982) is a left-hand M13.5×1 thread adapter machined from 17-4 stainless steel for fixed-barrel handguns and other non-reciprocating-barrel platforms. It is heat-treated and finished in black nitride for added wear and corrosion resistance, so it holds up to repeated mounting and removal. This adapter lets a fixed-barrel pistol accept muzzle devices and suppressors built around the M13.5×1 LH thread standard instead of the more common right-hand pitch. It is a straightforward accessory, not a suppressor itself, built simply to get the correct thread interface onto a fixed-barrel host.

Key Specifications

• Machined from 17-4 stainless steel for a strong, corrosion-resistant adapter.
• Heat-treated for added hardness and durability under repeated use.
• Finished in black nitride for extra wear and corrosion resistance.
• Cut to a left-hand M13.5×1 thread, matching fixed-barrel thread specifications.
• Purpose-built for fixed-barrel firearm systems rather than reciprocating-barrel platforms.

Frequently Asked Questions

Is this adapter itself a suppressor? No, it is a thread adapter that lets a fixed-barrel host accept a compatible muzzle device or suppressor; it is not a regulated NFA item on its own.

What thread does it use? It is cut to a left-hand M13.5×1 thread for fixed-barrel systems that use that pitch.

Buy the HUXWRX Direct Thread Adapter

Get the correct left-hand thread interface onto your fixed-barrel host without hunting down a gunsmith. Order it from our Lubbock, Texas gun shop and we will get it moving as soon as it is ready to ship. Explore more from HUXWRX Safety Company or browse our suppressor accessories selection for more mounting solutions.