Otter Creek Labs POLK556 Polonium K 5.56 Suppressor

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The Otter Creek Labs Polonium-K is a compact, high-performance suppressor engineered for 5.56 NATO and 6mm firearms. Crafted from H900 heat-treated 17-4 stainless steel, this CNC-welded, tubeless design offers exceptional durability and sound suppression in a shortened package. Ideal for shooters seeking a balance between size and performance, the Polonium-K delivers reliable suppression without compromising maneuverability.

Key Attributes
Compact Design: At 4.8 inches in length, the Polonium-K provides effective suppression while maintaining a minimal footprint, enhancing firearm handling.
Durable Construction: Made from H900 heat-treated 17-4 stainless steel, ensuring longevity and resistance to harsh firing schedules.
Versatile Mounting: Features industry-standard universal 1.375×24 rear threads, allowing compatibility with various mounting systems to suit user preferences.
Full-Auto Rated: Engineered to withstand full-automatic fire, making it suitable for rigorous use without performance degradation.
Caliber Compatibility: Optimized for 5.56mm and 6mm calibers, providing excellent suppression across these platforms.
Flash Reduction: Incorporates a flash-hiding end cap to minimize muzzle flash, beneficial for low-light shooting scenarios.
What’s in the Box
Otter Creek Labs Polonium-K Suppressor
1/2×28 Direct Thread Adapter
Tube Clamp for Mount Installation and Changes
Instruction Manual
Tech Specs
Length (long configuration): 4.8 inches
Weight (in ounces): 11.5 ounces (without mount)
Diameter (in inches): 1.625 inches
Material: H900 heat-treated 17-4 stainless steel
Finish: Black Cerakote
Full-Auto Rated: Yes
Ratings:
Calibers Supported: 5.56 NATO and 6mm cartridges
Minimum Barrel Length Restrictions:
7.5 inches for 5.56 NATO
10.5 inches for 6 ARC
12.5 inches for other 6mm cartridges