Description

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Details

Brand: Otter Creek Labs
Model: Polonium-30
Caliber: Up to 300 RUM/300 Norma Magnum
Overall Length: 5.8″ Weight: 13.5 oz.
Suppressor Diameter: 1.625″Muzzle Thread: 1.375×24 HUB (Bravo) rear threadsSuppressor Material: H900 heat-treated 17-4 stainless steel
Finish: Black Cerakote
Full Auto Rated: Yes
Suppressor Mount: Direct Thread/ HUB Compatible
Includes: Suppressor, 5/8×24 Direct Thread adapter, Tube Clamp, Owner’s Manual, Stickers

Features

The Otter Creek Labs Polonium-30 is a versatile 7.62mm silencer made from H900 heat-treated 17-4 stainless steel. At 5.8 inches and 13.5 oz, it balances compact agility with elite suppression. It handles everything from 5.56 to .300 RUM, making it the ultimate do-it-all suppressor for 2026 today.

Built for hard use, the full-auto rated Polonium-30 features a 1.375×24 HUB mount for total versatility. Its ribbed profile and flash-hiding end cap ensure a clean, smooth shooting experience even in low light. Shop PSA for the best 2026 deals and fast FFL shipping on this rugged black silencer.

Barrel Length Restrictions:

7.5” – 5.56/223 and 7.62×39
10.5” – 6 ARC, 6.5 Grendel and other similar cartridges
12.5” – 308, 6.5 creedmoor, 6mm creedmoor, 243 winchester and other similar cartridges
16” – 300 win mag, 7mm rem mag, 300 PRC and other similar cartridges
18” – 300 RUM and 300 Norma mag