Underworld Arms
Prodigy 3.5" Cerberus Compensator (Thumb Ledge Mk2)
Prodigy 3.5" Cerberus Compensator (Thumb Ledge Mk2)
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The Underworld Arms Cerberus Compensator for the Springfield Prodigy 3.5" is a compact triple port frame mounted compensator with superb efficiency and performance.
The Cerberus uses concave gas diverters at the front wall of the expansion chamber to route gas into the two upward angled side ports and the top port. By using this concave diverter the gas retains more of its energy as it is redirected and more gas is trapped and redirected into the ports. The side ports are angled up at 68 degrees which creates a 44 degree arc of gas venting.
The result of these design elements is an increase in recoil reduction and muzzle flip reduction for an even softer shooting experience than our cyclops compensator.
This 50 state legal compensator is made for unthreaded barrels. The Cerberus is available anodized black. This compensator has an ambi thumb ledge lower with horizontal serrations that match the horizontal serrations on the slide release and thumb safety for a cohesive aesthetic.
We designed our thumb ledge lower so that an X300 is flush with the trigger guard, other brands of lights have longer mounts and will sit farther forward.
Recoil spring tuning may be required for some combinations of grip and ammo weight.
Compatible holsters are available HERE
This compensator increases the dimensions of the firearm so it requires a dedicated holster such as the ones we make, or Tac-Rig (these have the most features and highest quality construction), or a universal holster such as the MSP Tier 1, and the blackhawk omnivore light bearing.
Installation Video: Click Here
Everything you will need for the install is included: locking block, screws, Blue Vibratite 121 thread locker, and an allen key.
Specifications
Material: 7075-T6
Weight: 2.8oz
Length Overall: 3.25"
Length Added to Firearm: .82"
I couldn’t wait for your 3.5 option to come out after getting my 3.5 Prodigy. I have one of your comps on my 4.25 and all your products are very well made and perform as expected.
Very suprised with how this cerberus compensator works it’s very quick and easy to install !! For the money this is definitely worth it, shoots incredibly flat !! 10/10 would recommend if you want to tame the recoil on your prodigy 3.5 . Had no issues at all with a stock prodigy it runs perfectly . You would need a custom holster to fit this which they sell , as it makes the gun a tad longer and wide.
I had the stock 3.5 prodigy and it’s amazing no lie but i wanted something to tame the snappy a touch. Here comes underworld arms CERBERUS!!!
This thing shoots incredibly flat and softer than stock. 100% impressed with quality and fit! It will match up perfectly with a tlr7 hlx and it’s my favorite EDC I have had yet! 10/10 outstanding!








