The Lincoln Electric Magnum PRO AL FC 225 Air-Cooled Rear Trigger MIG Welding Gun is a 225-amp professional welding gun engineered for MIG/GMAW aluminum and flux-cored (FCAW) applications where rear trigger placement provides optimal ergonomic control. The rear trigger configuration is preferred by welders working in flat, horizontal, and forehand welding positions, providing a natural hand position that reduces wrist fatigue in sustained production welding. With a 12-pin connection for Lincoln Electric feeder compatibility and cable lengths from 15 ft to 50 ft, the Magnum PRO AL FC 225 RT accommodates varying workstation configurations and reach requirements.
Like its front trigger counterpart, the Magnum PRO AL FC 225 RT supports both aluminum GMAW and flux-cored FCAW wire processes, with a liner and contact tip system optimized for reliable wire delivery and in-field consumable maintenance. The 225-amp air-cooled duty rating supports production cycle welding appropriate for light to medium fabrication volumes, while the replaceable consumable design extends gun service life and reduces total cost of ownership.
- K4795-1 – Magnum PRO AL FC 225 Air-Cooled, 12-Pin, Rear Trigger, 15 ft
- K4795-2 – Magnum PRO AL FC 225 Air-Cooled, 12-Pin, Rear Trigger, 25 ft
- K4795-3 – Magnum PRO AL FC 225 Air-Cooled, 12-Pin, Rear Trigger, 35 ft
- K4795-4 – Magnum PRO AL FC 225 Air-Cooled, 12-Pin, Rear Trigger, 50 ft
- 225-amp air-cooled rating — production-capable duty cycle for light to medium MIG/GMAW and FCAW fabrication
- Rear trigger ergonomics — natural hand position for flat, horizontal, and forehand welding positions
- 12-pin connection — direct compatibility with Lincoln Electric wire feeders and power sources
- Aluminum and flux-cored wire capable — dual-process versatility from a single gun platform
- Four cable length options: 15 ft, 25 ft, 35 ft, 50 ft — configurable reach for varied workstation and robot-adjacent layouts
- Replaceable consumables — tips, nozzles, and liners field-serviceable to extend gun service life
- Copper liner system — consistent, low-resistance wire delivery for stable arc performance
- Aluminum MIG/GMAW fabrication in flat and horizontal welding positions
- Flux-cored (FCAW) structural welding on carbon and low-alloy steel
- Production fabrication with sustained arc-on time at moderate amperage
- Automotive and transportation component welding requiring rear trigger control preference
- Shops upgrading existing Lincoln Electric feeder systems to aluminum-capable guns
The Lincoln Electric Magnum PRO AL FC 225 Rear Trigger gun provides the 225-amp air-cooled performance, aluminum and FCAW dual-process capability, and rear trigger ergonomics that welders prefer for flat and horizontal production work. With Lincoln Electric 12-pin feeder compatibility, four cable length options, and field-replaceable consumables, the Magnum PRO AL FC 225 RT is engineered for professional fabricators who demand reliable, comfortable MIG gun performance across extended production shifts.




