The ProMag COL19 is a 5-round detachable magazine built for .223 Remington and 5.56x45mm NATO AR-15 platforms. If you run an AR in either of these common calibers and need a straightforward, made-in-the-USA magazine, the COL19 delivers reliable feeding and durability without the premium price tag. It's the kind of piece you can throw in a range bag, keep as a backup, or stockpile without breaking the bank—and still get quality manufacturing behind it.

ProMag backs these magazines with a lifetime guarantee against manufacturer defects, which tells you they stand behind the design. The heart of reliable magazine performance is the spring, and ProMag precision-winds theirs using heat-treated chrome silicon wire—the same material and care you'd expect in much pricier offerings. Every magazine goes through rigorous assembly checks to ensure consistency, so you're not playing Russian roulette with feeding reliability.

The 5-round capacity makes this a natural fit for hunters who want to respect local regulations or simply prefer a shorter mag for brush hunting, truck hunting, or training. The blued finish on the body matches most AR receivers, and the detachable design means you can swap it out in seconds. Rugged construction without unnecessary bells and whistles—just a magazine that does its job when you need it.

The ProMag COL19 is a 5-round detachable magazine built for .223 Remington and 5.56x45mm NATO AR-15 platforms. If you run an AR in either of these common calibers and need a straightforward, made-in-the-USA magazine, the COL19 delivers reliable feeding and durability without the premium price tag. It's the kind of piece you can throw in a range bag, keep as a backup, or stockpile without breaking the bank—and still get quality manufacturing behind it.

ProMag backs these magazines with a lifetime guarantee against manufacturer defects, which tells you they stand behind the design. The heart of reliable magazine performance is the spring, and ProMag precision-winds theirs using heat-treated chrome silicon wire—the same material and care you'd expect in much pricier offerings. Every magazine goes through rigorous assembly checks to ensure consistency, so you're not playing Russian roulette with feeding reliability.

The 5-round capacity makes this a natural fit for hunters who want to respect local regulations or simply prefer a shorter mag for brush hunting, truck hunting, or training. The blued finish on the body matches most AR receivers, and the detachable design means you can swap it out in seconds. Rugged construction without unnecessary bells and whistles—just a magazine that does its job when you need it.