The Underworld Arms Cyclops Compensator for the Springfield Prodigy 4.25" 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. The Cyclops is available anodized black or cerakote coyote brown. This compensator has a multi slot lower rail, for a single slot lower rail please see our other listing.  On most builds this compensator will not require recoil spring tuning.  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 We include a small bottle of blue 242 loctite in the package. If you use too much and a screw is stuck heat the screw with a jet lighter, this will break down the loktite and the screw will come right out. The same method also works if you decided to use red loktite.  A heat gun or soldering iron will not work for a stuck screw as the temp is too low.  Specifications Material: 7075-T6  Weight: 2.7oz Length Overall: 3.75" Length Added to Firearm: .825"