Duty-rated OCL Polonium suppressor for 5.56; 5.8″ length, 1.625″ OD, FDE Cerakote finish, 13.5 oz, full-auto rated. Includes 1/2×28 direct thread adapter and tube clamp.
The OCL Polonium is a duty-rated suppressor designed for 5.56 use, built from heat-treated stainless steel with an FDE Cerakote finish. It is compact at 5.8 inches and engineered for high-tempo use, offering a balance of weight, cooling surface area and durability. The design includes features intended to reduce visible flash and to shed heat efficiently for sustained firing sequences.
Applications: well-suited for duty use on compact carbines and for precision-oriented patrol/DMR platforms where reduced signature and robust construction are priorities.
Product Specifications
The manufacturer is OCL (Otter Creek Labs).
The model is Polonium.
The caliber is 5.56.
The finish/color is FDE Cerakote.
The material is 17-4 stainless steel (H900 heat treated).
The length is 5.8 inches.
The outer diameter is 1.625 inches.
The weight is 13.5 ounces (no mount).
The suppressor is listed as full-auto rated.
Threading references include a 1/2×28 direct thread adapter and mention of 1.375×24 universal rear threads; see notes for review.
The unit is constructed as a CNC welded tubeless design.
Included in the box is the suppressor, stickers, an instruction pamphlet, a 1/2×28 direct thread adapter and a tube clamp.
The UPC for this item is 664533654149.
The Polonium is built for users who need a compact, duty-rated suppressor that prioritizes durability and heat management. Its reduced external material and increased surface area help it shed heat more rapidly while remaining rugged enough for frequent use. The integrated flash-reduction features and full-auto rating make it appropriate for operational and professional environments where consistent performance and low visible signature are necessary.
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