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Otter Creek Labs

POLONIUM K SUPPRESSOR, 556 1/2X28-BLACK

Item # OCL POLK MSRP $540.00
IN STOCK
Retail: $540.00 $479.00
(0) Reviews
SKU
OCL POLK
MPN
Polonium K
UPC
664533654156
FFL Required
Yes

PRODUCT DETAILS

TECH SPECS:

The OCL Suppressors Polonium-K 5.56 is a compact, hard-use suppressor designed for demanding applications where size, weight, durability, and sound performance matter. Built as the shorter option in the Polonium series, the Polonium-K delivers a rugged configuration in a compact 4.8-inch package.

Constructed from H900 heat-treated 17-4 stainless steel, the Polonium-K features a CNC-welded, tubeless design engineered for durability and repeated use. Its distinctive external profile reduces unnecessary material while maintaining strength, providing additional surface area to help dissipate heat and cool down more quickly.

The suppressor incorporates a 6mm bore compatible with specified 6mm/.243 cartridges and an integrated internal and external flash-hiding design intended to reduce visible flash, including in low-light conditions. Its 1.375×24 universal rear threads support compatibility with a variety of separately selected mounting systems.

At 4.8 inches long, 11.5 ounces without a mount, and 1.625 inches in diameter, the Polonium-K offers a compact option for compatible 5.56/.223 platforms. The manufacturer specifies a minimum barrel length of 7.5 inches for 5.56/.223 and 7.62×39 applications.

Key Features

  • Compact 4.8-inch length for a shorter suppressor configuration

  • H900 heat-treated 17-4 stainless steel construction

  • CNC-welded tubeless design for rugged use

  • 6mm bore compatible with specified 6mm/.243 cartridges

  • Integrated flash-reduction design for reduced visible flash

  • 1.375×24 universal rear threads for compatible mounting systems

  • 11.5-ounce weight without a mount

Included in the Box

  • Polonium-K suppressor

  • 1/2×28 direct-thread adapter

  • Tube clamp for installing and changing mounts

  • Stickers

  • Instruction pamphlet

Important: The supplied direct-thread adapter may vary from the product image. Confirm caliber, barrel-length requirements, mounting compatibility, and applicable federal and state requirements before purchase. Suppressor transfers and possession remain subject to applicable law and required procedures.


OCL Suppressors (Polonium-K)
Caliber 5.56 / .223
Bore Diameter 6mm
Compatible Additional Cartridges Specified 6mm/.243 cartridges; verify manufacturer compatibility
Length 4.8 inches
Weight 11.5 oz (without mount)
Outside Diameter 1.625 inches
Material 17-4 Stainless Steel
Heat Treatment H900
Construction CNC-Welded Tubeless Design
Rear Threading 1.375×24
Included Direct-Thread Adapter 1/2×28
Minimum Barrel Length 7.5 inches for 5.56/.223 and 7.62×39
Flash Reduction Integrated Internal and External Flash-Hiding Design
Package Contents Suppressor, 1/2×28 Direct-Thread Adapter, Tube Clamp, Stickers, Instruction Pamphlet

Questions 0

Ask a Question
Question
Don 2 weeks ago
What is the difference between a bolt-action rifle and a semi-automatic rifle? Answers (1)

Proven Arms & Outfitters A bolt-action rifle requires the shooter to manually operate a bolt to load a round, eject the spent casing, and chamber the next round. In contrast, a semi-automatic rifle is designed to automatically eject the spent casing and chamber a new round with each pull of the trigger. Semi-automatic rifles offer faster follow-up shots, while bolt-action rifles are typically more accurate due to their design.

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No Customer Review on this product

PRODUCT DETAILS

TECH SPECS:

The OCL Suppressors Polonium-K 5.56 is a compact, hard-use suppressor designed for demanding applications where size, weight, durability, and sound performance matter. Built as the shorter option in the Polonium series, the Polonium-K delivers a rugged configuration in a compact 4.8-inch package.

Constructed from H900 heat-treated 17-4 stainless steel, the Polonium-K features a CNC-welded, tubeless design engineered for durability and repeated use. Its distinctive external profile reduces unnecessary material while maintaining strength, providing additional surface area to help dissipate heat and cool down more quickly.

The suppressor incorporates a 6mm bore compatible with specified 6mm/.243 cartridges and an integrated internal and external flash-hiding design intended to reduce visible flash, including in low-light conditions. Its 1.375×24 universal rear threads support compatibility with a variety of separately selected mounting systems.

At 4.8 inches long, 11.5 ounces without a mount, and 1.625 inches in diameter, the Polonium-K offers a compact option for compatible 5.56/.223 platforms. The manufacturer specifies a minimum barrel length of 7.5 inches for 5.56/.223 and 7.62×39 applications.

Key Features

  • Compact 4.8-inch length for a shorter suppressor configuration

  • H900 heat-treated 17-4 stainless steel construction

  • CNC-welded tubeless design for rugged use

  • 6mm bore compatible with specified 6mm/.243 cartridges

  • Integrated flash-reduction design for reduced visible flash

  • 1.375×24 universal rear threads for compatible mounting systems

  • 11.5-ounce weight without a mount

Included in the Box

  • Polonium-K suppressor

  • 1/2×28 direct-thread adapter

  • Tube clamp for installing and changing mounts

  • Stickers

  • Instruction pamphlet

Important: The supplied direct-thread adapter may vary from the product image. Confirm caliber, barrel-length requirements, mounting compatibility, and applicable federal and state requirements before purchase. Suppressor transfers and possession remain subject to applicable law and required procedures.


OCL Suppressors (Polonium-K)
Caliber 5.56 / .223
Bore Diameter 6mm
Compatible Additional Cartridges Specified 6mm/.243 cartridges; verify manufacturer compatibility
Length 4.8 inches
Weight 11.5 oz (without mount)
Outside Diameter 1.625 inches
Material 17-4 Stainless Steel
Heat Treatment H900
Construction CNC-Welded Tubeless Design
Rear Threading 1.375×24
Included Direct-Thread Adapter 1/2×28
Minimum Barrel Length 7.5 inches for 5.56/.223 and 7.62×39
Flash Reduction Integrated Internal and External Flash-Hiding Design
Package Contents Suppressor, 1/2×28 Direct-Thread Adapter, Tube Clamp, Stickers, Instruction Pamphlet

Overall Rating
Reviews 0

0.0 / 5.0

(Based on 0 Reviews)

Review Stats View All
5 Stars
0
4 Stars
0
3 Stars
0
2 Stars
0
1 Stars
0
Photos Verified Purchases

No Customer Review on this product

Questions 0

Ask a Question
Question
Don 2 weeks ago
What is the difference between a bolt-action rifle and a semi-automatic rifle? Answers (1)

Proven Arms & Outfitters A bolt-action rifle requires the shooter to manually operate a bolt to load a round, eject the spent casing, and chamber the next round. In contrast, a semi-automatic rifle is designed to automatically eject the spent casing and chamber a new round with each pull of the trigger. Semi-automatic rifles offer faster follow-up shots, while bolt-action rifles are typically more accurate due to their design.