Otter Creek Labs Polonium 5.56 Suppressor Built for hard use and precision, the Otter Creek Labs Polonium is a duty-rated 5.56 suppressor that thrives under pressure—whether you're hammering through drills on a MK18 or dialing in on a DMR. Crafted from H900 heat-treated 17-4 stainless steel, its ribbed exterior boosts surface area for rapid cooling and reduced weight, making it ideal for sustained fire and tactical maneuverability.

• Caliber Compatibility: 5.56 NATO / .223 Rem / 6mm / .243

• Length: 5.8"

• Weight: 13.5 oz

• Material: H900 heat-treated 17-4 stainless steel

• Mounting: Universal 1.375×24 HUB rear threads

• Finish: Matte Black

Features: 

• Integrated internal & external flash hider for superior signature reduction

• Full-auto rated—no compromises

• Compatible with a wide range of HUB mounting systems

• Ideal for use with night vision and low-light setups

• Bore optimized for 6mm cartridges

Whether you're running suppressed on a short-barreled rifle or stretching out with a precision build, the Polonium delivers elite-level suppression, flash mitigation, and reliability. It’s a workhorse with warfighter DNA. Note: NFA item. All federal, state, and local laws apply.

Available at www.mylibertyarmory.com