The Fusion Firearms XP Comp Thumbrest Edition is a 9mm, 1911-style wide-body pistol built on the XP Comp platform and set up to accept Glock 17 magazines. It has a threadless, pinned compensator built into a 4.6-inch Clark/Para ramped bull barrel, and it adds ambidextrous thumbrest gas-pedal controls so the support hand can be indexed more firmly on rapid strings of fire. 
 

Key Specifications 

• Brand: Fusion Firearms 
• Model: XP Comp Thumbrest Edition 
• Caliber: 9mm 
• Action: Semi Auto 
• Capacity: 17+1 
• Barrel Length: 4.6 in 
• Finish: Black Tennifer QPQ 
• Frame: 1911-style wide-body 
   

Detailed Features 

• Ambidextrous thumbrest gas-pedal controls aid support-hand grip and recoil management 
• Threadless, pinned compensator integrated into the bull barrel, no ports or slide cuts 
• Novak compatible combat sights for a familiar sighting setup 
• One-piece steel milled trigger and a full-length guide rod 
• Ambidextrous thumb safety and a wide paddle pro slide stop 
• Removable rear plate with an included RMR/SRO mounting plate, removable magwell, and Picatinny rail

Shooters drawn to a wide-body 1911 like the XP Comp Thumbrest Edition tend to be competition or heavy-practice shooters, and the general feedback is that the fit and machining feel tight straight out of the box. The threadless compensator design gets praise for staying clean, since there is no port fouling to deal with the way there is on some ported comp guns.

The thumbrest gas-pedal controls are the most talked-about feature: shooters who shoot a lot of rapid strings like the extra support-hand purchase, while a smaller group finds the pedals unnecessary or slightly in the way during a normal two-hand grip. The Novak-style sights and steel trigger get consistent approval for being straightforward and familiar to anyone who has run a 1911 before.

Owners see the Glock-pattern magazine compatibility as a practical touch, since magazines are easy to find compared to proprietary wide-body magazines from smaller makers. The included optic mounting plate is well liked by shooters who want to add a red dot without sending the slide out for milling.