The Polonium-K is designed to be a quiet, duty-rated, hard-use suppressor for 5.56mm firearms. As a compact version of the Polonium, this suppressor offers a well-balanced shooting experience with minimal back pressure, excellent flash reduction, and impressive sound suppression for its size class. At under 5 inches in length, the Polonium-K is engineered for optimal performance while maintaining a lightweight and durable construction.

Key Features:

  • Optimized Design: Unique external weight reduction maximizes strength while minimizing weight, resulting in 10% more surface area for faster heat dissipation and cooling.
  • Flash Reduction: Built-in internal and external flash hider effectively reduces flash and signature, especially when using night vision equipment.
  • Versatile Mounting: Compatible with industry-standard universal 1.375×24 rear threads, allowing you to choose the mounting system that best suits your needs.

Barrel Length and Firing Restrictions:

  • 5.56/.223: Minimum barrel length of 10.3″
  • 6 ARC: Minimum barrel length of 11.5″
  • 6 Creedmoor, 6 Dasher, .243 Winchester, and other 6mm cartridges: Minimum barrel length of 14.5″

Technical Specifications:

  • Length: 4.8 inches
  • Diameter: 1.625 inches
  • Weight: 11.5 oz
  • Material: 17-4 Stainless Steel
  • Full Auto Rated: Suitable for full automatic fire
  • Belt Fed Rated: Capable of handling belt-fed firearms with a minimum 16″ barrel for 5.56mm

What’s in the Box:

  • OCL Polonium-K Suppressor
  • 1/2×28 Direct Thread Adapter
  • Tube Clamp
  • Owners Manual
Weight 5 lbs
Dimensions 20 × 15 × 10 in
Caliber

223, 5.56

Color/Pattern

Black

Firearm Type

Rifle Suppressor

Manufacturer

Otter Creek Labs

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