ProMag ENF04 10-Round .303 British Magazine Enfield No.4 MK1 Steel

The ProMag ENF04 delivers reliable feeding for Lee-Enfield No.4 MK1 rifles chambered in .303 British. This aftermarket magazine provides shooters with a dependable 10-round capacity option that maintains the classic functionality of the historic battle rifle.

What Makes This Different

Unlike original wartime magazines that may suffer from decades of wear, the ENF04 features modern manufacturing tolerances and fresh spring tension. The blued steel construction matches the rifle's original finish while providing consistent cartridge presentation. This magazine eliminates feeding issues common with worn surplus magazines, particularly important for collectors who shoot their rifles regularly.

Key Features

• 10-round capacity for .303 British cartridges
• Blued steel construction matches original Enfield finish
• Drop-in replacement for Lee-Enfield No.4 MK1 rifles
• Heat-treated steel body resists deformation under pressure
• Anti-tilt follower design prevents feeding malfunctions
• Standard detachable box magazine configuration
• Compatible with both military surplus and commercial .303 British ammunition

Range performance shows consistent feeding across various .303 British loads, from 150-grain military ball to 180-grain hunting ammunition. The magazine's geometry accommodates the rimmed cartridge design that can challenge inferior aftermarket options. Hunters appreciate the reliable function during extended shooting sessions, while military rifle enthusiasts value the authentic appearance that preserves the rifle's historical character.

Technical Specs

• Capacity: 10 rounds
• Caliber: .303 British
• Material: Blued carbon steel
• Compatibility: Lee-Enfield No.4 MK1 rifles
• Overall Length: Approximately 5.5 inches
• Weight: 4.2 ounces (empty)
• Finish: Traditional blue steel
• Country of Origin: USA

This magazine addresses the common problem of finding reliable feeding solutions for vintage military rifles still in active use. The ENF04 combines period-correct appearance with modern manufacturing standards, making it an essential upgrade for any Lee-Enfield owner who values both authenticity and performance.