Otter Creek Labs Polonium 30 .30 Cal Suppressor - 5/8x24 Direct Thread Adapter
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Plan your Class 3 dealer
Suppressors go through a Class 3 (SOT) dealer, and the federal tax on them has been $0 since January 1, 2026. You still pay the dealer's transfer fee. Some states only allow suppressors and SBRs that are federally registered or possessed in compliance with federal law. Check your state's statute before you buy.
Federal and state suppressor rulesOtter Creek Labs
Overview
The Otter Creek Labs Polonium 30 suppressor is designed for .308 Win caliber firearms and features a direct thread mount type, ensuring a secure and reliable connection to your rifle's muzzle. This suppressor effectively reduces the noise signature of your shots while maintaining the performance and accuracy of your build. It's commonly found in precision rifles intended for both hunting and competitive shooting applications.
Specifications
Otter Creek Labs Polonium 30 .30 Cal Suppressor - 5/8x24 Direct Thread Adapter
October 2026 on GunPartPicker
Otter Creek Labs Polonium 30 .30 Cal Suppressor - 5/8x24 Direct Thread Adapter ranked #69 of the 239 suppressors builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #28 of the 536 suppressors builders have added. Builds with this suppressor are split between 300 Blackout (55%) and .308 Win (18%), split between pistol-length (40%) and carbine-length (30%) gas systems, and mostly AR-15 (82%, then AR-10 15%).
It was hard to find in October 2026, in stock on only 2 of the 14 days we checked, and today none of the 3 retailers we track has it in stock right now. Prices barely moved in October 2026, holding around $532, with no real sale all month. Listed prices start at $532 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
PSA PA15 MOE EPT Complete Lower w/ SBA5 Brace, FDE
CMMG MK4 .300BLK Banshee Upper Group Receiver 8in 1-7 Twist 5/8 X 24 TPI 16.5in Armor Black
KAK Industry K Spec Enhanced Bolt Carrier Group For AR 15 5.56.300 Blackout Full Chrome
Breek Arms Sledgehammer Omni-Buster LE/MIL Charging Handle AR-15 Black
Holosun ARO Red Dot Sight Gold 2 MOA Dot with Picatinny Mount Matte Black
Magpul MOE K2 Grip Polymer Gray
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
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