Description
Otter Creek Labs Polonium 5.56 Suppressor Features and Performance
The Otter Creek Labs Polonium 5.56 Suppressor is built for shooters who want a full-size 5.56 rifle suppressor with a strong reputation for hard-use durability. Finished in Flat Dark Earth, this model delivers the same compact profile and rugged construction that have made the Polonium series a popular option for carbines, duty-style rifles, and general-purpose 5.56 setups.
Built from H900 heat-treated 17-4 stainless steel, the Polonium is designed around durability and real-world rifle use. Its 1.375×24 HUB rear threads give you flexibility when choosing a compatible mounting system, making it easier to tailor the suppressor to your preferred setup while keeping overall size manageable.
If you are building out a complete rifle setup, browse our
NFA items
and more
Otter Creek Labs products.
For manufacturer information, visit the
official Otter Creek Labs Polonium page.
Details
- Manufacturer: Otter Creek Labs
- Model: Polonium
- UPC: 664533654149
- MPN: POL556-FDE
- Caliber: 5.56 NATO
- Finish: Flat Dark Earth Cerakote
- Material: H900 heat-treated 17-4 stainless steel
- Length: 5.8 inches
- Weight: 13.5 oz
- Diameter: 1.625 inches
- Rear Threads: 1.375×24 HUB
- Included Adapter: 1/2×28 Direct Thread Adapter






Reviews
There are no reviews yet.