Underworld Arms
Tisas B9R Carry Cyclops Compensator (Thumb Ledge Mk2)
Tisas B9R Carry Cyclops Compensator (Thumb Ledge Mk2)
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The Underworld Arms Cyclops Compensator for the Tisas B9R Carry 4.25" DS 1911, is a frame mounted compensator with a large expansion chamber that redirects the gas into a single top port that is similar in size to the Staccato XC and Sand Hawk. This compensator is made for the first generation B9R with bushing style barrel.
This 50 state legal compensator is made for unthreaded barrels and is 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. The holster we make for the MAC is compatible with this thumb ledge lower.
On most builds this compensator will not require recoil spring tuning but we offer a spring tuning kit if your build requires it.
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 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: 2.7oz
Length Overall: 3.75"
Length Added to Firearm: .825"
Customer Reviews
Great upgrade to the pistol!
Another fantastic product, the b9r is a good platform bt add this and it goes from good to great. This comp balances the pistol with the weight added to the front. The added thumb ledge is a brilliant addition. The felt recoil is reduced, returns to zero better, the sound is amazing and it makes the tisas unrecognizable. I wish they woukd make one for the night stalker :)
Awesome comp. Bought one for my Prodigy a while back and loved it so I got one for my Tisas. Fit and finish is perfect
The first comp was for the Springfield Prodigy and I was so impressed that I purchased this comp for my Tisas. I really like this one too. I like the support ledges because they really help with the small amount of recoil that you get. Please make one for the Prodigy 3.5 and I will buy that one too.
Great product
Wasn't sure if this thing would look wonky, fit right, or lines match, or even work. It was obviously designed and made very well. To the unfamiliar / untrained eye, one wouldn't even know it's not part of the gun. I haven't done any measurements but I put several hundred rounds through it and I've had no issues, and it seems to do it it's purpose. Very pleased. I don't see why I would ever remove it other than to clean the gun, so I went ahead and made another order for the Kydex holster that fits. It's worth the money and I recommend.
