OTTER CREEK LABS POLONIUM: BUILT TO BEAT THE HEAT AND THE NOISEWhether you’re blasting through a training day or tightening groups at distance, the Otter Creek Labs Polonium is your go-to 5.56 suppressor. Designed as the everyman’s workhorse, it delivers proven decibel reduction with full-auto durability and smart design touches that punch above its price point.
Machined from 17-4 stainless steel, the Polonium runs a ribbed external profile that increases surface area for faster cooling under pressure. An integrated flash hider reduces your visible signature when you’re running under NODs or in low light. The rear end is threaded 1.375×24 HUB to accept your favorite HUB-mount system or direct-thread setup.
KEY FEATURES & BENEFITS
Full-Auto Rated: Built tough for hard use
Flash Suppression: Integrated flash hider keeps down muzzle flash
Minimal Bulk: Adds less than 6 inches to your overall length
Mount-Ready: HUB-compatible 1.375×24 rear threads
Multi-Cal Friendly: Ideal for 5.56, also supports 6mm hosts
TECHNICAL SPECIFICATIONS
Length: 5.8″
Weight: Weight: 13.5 oz
Diameter: Diameter: 1.625″
Build Material: 17-4 Stainless Steel
Finish: Cerakote
Full Auto Rated: Yes
Barrel Restrictions:
7.5” – 5.56/223
10.5” – 6 ARC
12.5” – 6 Creedmoor, 6 Dasher, 243 Winchester and other 6mm cartridges
WHAT’S IN THE BOX
OCL Polonium Suppressor
1/2×28 Direct Thread Adapter
Tube Clamp
Owners Manual
HOW TO BUY THE OCL POLONIUM WITH SILENCER SHOP
Add the Otter Creek Labs Polonium to your cart. Make sure to include a tax stamp for each item, and a Single Shot Trust if applicable.
Visit a Powered by Silencer Shop dealer with a kiosk to complete your fingerprint scan and demographic info.
Upload your selfie and sign the emailed electronic document from Silencer Shop.
Create or verify your ATF eForms account at eforms.atf.gov. Make sure your info matches your Silencer Shop profile.
Certify and submit your application through your local Powered by Silencer Shop dealer for ATF review.
34 reviews for Otter Creek Labs Polonium Suppressor
Only logged in customers who have purchased this product may leave a review.
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Oksana S –
What an amazing silencer!! Especially for the price. I tried shooting it with no ears and it’s so much quieter! Definitely hearing safe. I put this on my AR as a dedicated can.
Cache C –
I absolutely love the OCL Polonium! Quality and workmanship is top notch, it sounds incredible on my 224 Grendel, I actually think m my group size got smaller using this can. This suppressors price point is well below the high quality you get with it. I’m very happy I decided to go with the Polonium over several others I was considering.
Worth every penny and I highly recommend this can to everyone I talk to.
Zacharey C –
This can is amazing, and has awesome noise reduction for the price of it. A little bit gassy but nothing an adjustable gas block, and heavier buffer did not take care of. Again the value for the cost is second to none. Would recommend this for any of your 5.56-6mm builds.
Mark M –
This is my first suppressor, all the reviews I read helped me make the decision to purchase the polonium 5.56.
It is affordable for most which is nice as well as performs great. It is well put together, clean looking and of course quiet. I highly recommend this suppressor.
Justin P –
10/10 very well built and saves the earth drums
Greg –
Great dedicated 5.56 suppressor. Only cost a little bit more than I paid for my first rimfire suppressor back in 2006. Nice deep tone on my 10.5 SBR. Running mine on Rearden Atlas/SPB combo.
Adam M –
Super solid and super durable.
Juan G –
This is one amazing can for the price! High quality contruction and a great suppressor all around! Had a blast at the range with this thing on my AR. Not movie quiet but definitely hearing safe!
William Sanford –
Great can for the money! Only issue is it doesn’t come with a wrench to take the direct thread mount on and off the suppressor.
Joshua P –
Haven’t tried on my 22-250 yet but super quiet on my AR seems to be an awesome product
A Sheppard –
I have only put about 50 rds through it, but so far it’s great. I ran it on a 16″,10.5″, and 7.5″ My db meter read 114.2 at the lowest to 115.8 at the highest. That was taken at the shooter. IMO I couldn’t ask for much better!
Dean B –
Cannot say enough about this can. I am very pleased with the performance of the product.
Lucas B –
Put it on a ruger 204 and it sounds great.
Travis N –
Running it on an 11.5″ with a superlative arms bleed off gas block. Very pleasant to shoot with little to no gas in the face. Very good suppressor for the price.
Bryon Mabery –
Love it! Looks awesome on my rifle.
Jacob H –
Great can from an amazing company. Sounds and shoots amazing. Highly recommended.
steve dawson –
What an amazing suppressor at a great price. I am 100% satisfied with my purchase. The recoil reduction in my 11.5 inch 5.56 is not to be believed !
Michael Turner –
Compact and light weight.
Byron Redmon –
Its not as quiet as i thought it would be!! Not bad for the money..
LEE C –
A bit on the heavy side for other similar sized suppressors. Very pleased with minimal point of impact shift of less than 1” elevation at 50 yards. Installed on a 10.5” in 5.56 and it tames the sound better than I expected. A bit higher back pressure than others, but that should be expected from the baffle stack. Again, very pleased and would happily recommend.
Deric J –
One of the cheapest suppressors for 556 but worth every penny plus more. Glad I got it.
Michael F –
My first 5.56 can. Does what it’s supposed to and helps cut the noise. Haven’t ran at night, but it seems to cut down muzzle flash on my 11.5″. Caught a sell and it was a no-Brainer.
Jonathan B –
IT’S FANTASTIC!
JOE A –
Super quiet and great value
Corinth W –
Surprised at the sound suppression that this can offers, very pleased with how it runs on my AR 15. If you were looking for a well built and quiet, 556 can this is a good option. It is a bit gassy on AR 15s.
Kacy G –
For the money, the quality of this can is top tear. 10/10
Daniel M –
Bought this to be a dedicated suppressor for my .22-250. Although a bit on the heavy side, it’s extremely quiet !! Also tightened up my group a little.
James W –
This can is fantastic. It’s super sleek looks real real clean. Has great tone and doesn’t break the bank. Maybe the best part about buying this can though was it came with 5 stickers!!
Hunter B –
Extremely quiet, but it is on the heavier side
William F –
Great sound suppression for a smaller, inexpensive can. Comparable to cans twice the price
Ruben D –
Awesome can! Great value!
John –
Works great, really happy with it.
Carlos A –
Great quality at an affordable price!
Jeffrey H –
Happy with the product