Otter Creek Labs Polonium-K 5.56 Suppressor, Black

The Otter Creek Labs Polonium-K 5.56 Suppressor is a compact, lightweight NFA suppressor built for short-barreled 5.56 rifles and pistols. Machined from H900 heat-treated 17-4 stainless steel in a fully welded, tubeless design, it is full-auto rated and delivers strong sound and flash reduction in a 4.8″ package. FFL and SOT transfer required. Specifications Caliber: 5.56 NATO / .223 Rem (also 6mm ARC, 6 Creedmoor, 6 Dasher, .243 Win) Length: 4.8″ Weight: 11.5 oz (without mount) Diameter: 1.625″ Construction: H900 17-4 stainless steel, tubeless CNC-welded Finish: Cerakote (Black) Mount: 1.375×24 HUB; includes 1/2×28 direct-thread adapter Full-Auto Rated: Yes Minimum Barrel Length: 7.5″ Warranty: Lifetime NFA Item: Yes – Tax stamp required FFL Transfer: Required