Lincoln Electric Magnum PRO 100L Welding Gun – Lightweight, Compact, and Durable

The Magnum PRO 100L Welding Gun is the most lightweight and compact MIG welding gun in the Magnum PRO L-Series family, designed for performance, comfort, and reliability. Perfect for home workshops, farms, small shops, auto body welding, and light maintenance or repair applications, this welding gun delivers professional results at an affordable price.

Key Benefits and Features

• Premium Tip Performance – Equipped with Magnum PRO Copper Plus contact tips, the 100L provides superior heat dispersion for cooler operation and extended tip life. Anti-Seize™ threads make changing tips easy and prevent fusing or seizing in the diffuser.

• Ergonomic Over-Molded Handle – Lightweight, curved design with soft rubber grip reduces hand fatigue, improves control, and ensures all-day comfort.

• 100% Duty Cycle – Built to last, the Magnum PRO 100L operates at 100% duty cycle with mixed gas, giving you consistent performance for tough jobs.

• Easy Maintenance – Nickel-plated nozzles resist spatter buildup, while coarse threads allow for quick nozzle changes.

What’s Included

• Contact Tips:

  • KP2744-025T (0.025 in.) x1

  • KP2744-035T (0.035 in.) x1

• 0.5 in. Flush Thread-On Gas Nozzle (KP3075-1-50F)

• Gas Diffuser (KP3076-1)

• Gun Liner (KP35-40-15)

• Integrated Gun Connector

Machine Compatibility

The Magnum PRO 100L is highly versatile and works with popular Lincoln Electric POWER MIG welders and other machines:

• Lincoln Models: POWER MIG 140C, 180C, 140 MP®, 210 MP, 256, 260, LF-72™, LF-74™, Flex Feed® 74 HT, Flex Feed 84, LN-25 PRO®, LN-25X®, Activ8®, Activ8X®, Power Feed® 10/10M/25M/84.

• Miller Compatible (K4871-1): Millermatic 141, 211, 212 Auto-Set, 252, 255, Multimatic® 200, 215, 220 AC/DC, 255.

Product Specifications

• Product Name: Magnum PRO 100L

• Product Number: K4528-1 (4-pin), K4528-1-8P (8-pin), K4871-1 (Miller Compatible)

• Amperage Rating: 100A, 100% duty cycle

• Wire Diameter Range: 0.025–0.045 in. (0.6–1.2 mm)

• Cable Length: 10 ft. (3.0 m) or 15 ft. (4.5 m) options

Why Choose the Magnum PRO 100L?

With Copper Plus technology, ergonomic comfort, and durable expendables, the Magnum PRO 100L keeps you welding longer and replacing parts less often. Whether you’re a professional welder or a DIY fabricator, this gun offers long-lasting reliability, precision, and ease of use—all backed by Lincoln Electric’s industry-leading quality.