Underworld Arms
Tisas B9R 4.25" Gen 2 Cyclops Compensator Thumb Rest Mk2
Tisas B9R 4.25" Gen 2 Cyclops Compensator Thumb Rest 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 second generation B9R with bull style barrel.
This 50 state legal compensator is made for unthreaded barrels and is anodized black. This compensator has an ambi thumb rest lower with horizontal serrations that match the horizontal serrations on the slide release and thumb safety for a cohesive aesthetic. The holster we make is compatible with this thumb rest 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"
