PRE-ORDER Guidance

As you are probably aware, recent updates to ATF's eForm approval process has resulted in drastically improved turnaround times. While this is certainly a positive change, it has also had a predictable impact on suppressor inventory across the industry.

With that in mind, if you know you want a particular suppressor (or three) and it isn't in stock, your best bet is to place a "PRE-ORDER" so that we can purchase your desired suppressor the moment it becomes available from our distributors. If you wait until it shows in-stock on the website, you might miss your opportunity. PRE-ORDER helps us seek out and purchase what you are looking for. This is true whether you buy from us or someone else.

Thank you for considering Longbow Arms, we hope to earn your business.

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Polonium K (BLK or FDE)

$522.00

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Out of stock, available for pre-order

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Product Details

Brand: OTTER CREEK LABS

Caliber Rating: 5.56mm

Mounting System: Industry Standard HUB compatible (1.375x24)

Materials: 17-4 Heat Treated Stainless Steel

Weight: 11.5oz

Length: 4.8"

Diameter: 1.625”

Full Auto Rated: Yes

DESCRIPTION

The Polonium-K is made to be a quiet, duty rated, hard use, 5.56 suppressor. Just as much at home on a MK18 getting hammered with heavy strings of fire as it is on a DMR/SPR set up where ultimate suppression is the goal. The unique look comes from external weight reduction, removing all unnecessary material to keep the weight down but still as strong as possible – this results in a suppressor that has 10% more surface area and a lower weight that sheds heat faster and cools down quicker. The Polonium-K features two fewer baffle than the full size Polonium, while still maintaining excellent at ear suppression.

The polonium uses a 6mm bore that is compatible with any 6mm/.243 cartridges.

The highly effective built in internal and external flash hider offer superior flash and signature reduction over the competition when using night vision.

The Polonium features industry standard universal 1.375×24 rear threads so you can pick what mounting system best fits your needs.

Made from H900 heat treated 17-4 stainless steel and constructed as a tubeless design the specs are as followed:

OD: 1.625”
Length: 4.8″ (no mount)
Weight: 11.5 oz (no mount)
137 dB on 11.5” 5.56 SBR with BK 2209

Barrel length and firing schedule restrictions

10.3” – 5.56/223
11.5” – 6 ARC
14.5” – 6 Creedmoor, 6 dasher, 243 Winchester and other 6mm cartridges.
Full auto rated – no BS. Responsible belt fed rated on 16″ 5.56mm belt fed machine guns.
Lifetime warranty

What’s included in the box?

Suppressor
Stickers
Instruction and specs pamphlet
1/2×28 direct thread adapter
Tube clamp for installing mounts

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Polonium K (BLK or FDE)

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Inventory and Ordering Guidance

Longbow Arms attempts to keep popular items in stock, however, if you want something not listed on the site, please reach out to us so we can discuss ordering that item. Under normal conditions, non-NFA items can be ordered and received within 5-10 business days.

For NFA items, Dealer to Dealer and Manufacturer to Dealer transfers are subject to eForm 3 approval times which are currently running 7-14 days.