The Otter Creek Labs Polonium K is a compact, hard-use 5.56 suppressor machined from H900 heat-treated 17-4 stainless steel in a tubeless, CNC-welded design. At just 4.8″ long and 11.5 oz, it adds minimal length and weight while delivering full-size suppression performance. The 6mm bore is compatible with 5.56 NATO, .223 Rem, and 6mm/.243-family cartridges. Universal 1.375×24 rear threads accept your mounting system of choice. This is a regulated NFA item — transfer requires an approved ATF Form 4/tax stamp and must go through a licensed FFL/SOT. Buyer is responsible for all applicable transfer paperwork and fees.
$375.00
Only 1 left in stock
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