The HUXWRX Fixed Barrel Spacer (HUXWRX part no. 1836) is a small but important part for shooters running a fixed-barrel host instead of a piston setup, made by HUXWRX Safety Company. It replaces the RAD piston spring, letting the RAD mounting system function correctly on a barrel that does not cycle a piston. It is an inexpensive way to make sure your suppressor-ready host is configured the way HUXWRX intended.

Key Specifications

• Function: replaces the RAD piston spring on fixed-barrel host configurations.
• Compatibility: designed for use with HUXWRX RAD-pattern mounting systems.
• Material: machined from 17-4 stainless steel with a black nitride finish.
• Rated for 9mm and .45 ACP multi-caliber use.
• Includes wrench flats for straightforward installation.

Frequently Asked Questions

What does the Fixed Barrel Spacer replace? It replaces the RAD piston spring, which is not needed on a fixed-barrel host.

Is this itself a regulated NFA item? No, this spacer is an ordinary accessory part; it does not include a suppressor or any NFA-regulated component.

Buy the HUXWRX Fixed Barrel Spacer

Get your fixed-barrel host running the way HUXWRX designed it, from our Class 3 parts and accessories selection. Order it from our Lubbock, Texas gun shop for fast, direct shipping to your door.