The ProMag COLA35 delivers extended firepower with its 40-round capacity, engineered specifically for AR-15 and M16 platforms chambered in 223 Remington and 5.56 NATO. This steel construction magazine addresses the need for sustained fire capability in competitive shooting and tactical applications.
What Makes This Different
Unlike standard 30-round magazines, the COLA35 provides 33% more ammunition capacity while maintaining reliable feeding through its steel body construction. The magazine features a robust follower system designed to handle the increased spring tension required for 40-round operation. Steel construction offers superior durability compared to polymer alternatives, particularly under high-stress conditions and repeated loading cycles.Key Features
- 40-round capacity for extended shooting sessions without reloading
- Steel body construction provides enhanced durability and longevity
- Compatible with AR-15, M16, and variants in 223 Rem/5.56 NATO
- Anti-tilt follower design ensures consistent ammunition feeding
- Heat-treated steel springs maintain tension through extended use
- Black finish resists corrosion and provides low-visibility profile
- Standard STANAG magazine well compatibility
Technical Specs
- Capacity: 40 rounds
- Caliber: 223 Remington/5.56 NATO
- Body Material: Steel with black finish
- Overall Length: Approximately 9.5 inches
- Weight: 1.2 lbs (loaded weight approximately 2.8 lbs)
- Compatibility: AR-15, M16, and STANAG pattern rifles
- Spring: Heat-treated steel
- Follower: Anti-tilt polymer design
