ProMag 1911 Kimber / Marvel / Iver Johnson Conversion Magazine Colt .22 LR Black Polymer 10/rd

If you've got a .22 LR conversion kit for your 1911, you know the value of quality magazines that won't let you down at the range or in practice. The ProMag 1911 Kimber / Marvel / Iver Johnson Conversion Magazine is a 10-round polymer mag built to feed reliably through your rimfire upper. It's engineered to work with Kimber, Nighthawk Custom / Bob Marvel, and Iver Johnson .22 conversions—the platforms that serious shooters trust for low-recoil, high-volume training.

Reliability matters in a magazine, even in .22. This one uses a chrome silicon spring built to cycle rounds smoothly and handle repeated use without fatigue. The polymer construction keeps things lightweight while standing up to the abuse of regular range sessions, and the removable floorplate makes it simple to break down for cleaning or inspection. You'll always know where you stand too—the side witness windows let you count remaining rounds at a glance, no guessing required.

Whether you're running drills on steel, building speed and accuracy, or just putting lead downrange affordably, having reliable mags in the right capacity matters. This 10-round mag fits the bill for shooters running Kimber, Marvel, or Iver Johnson .22 conversions who want dependable feeding without the weight or complexity of full-size 1911 mags.

Key Features

• Chrome silicon spring for reliable feeding and long service life
• Removable floorplate for easy field cleaning and maintenance
• Side witness windows to track round count
• Durable polymer construction
• 10-round capacity
• Compatible with Kimber, Nighthawk Custom / Bob Marvel, and Iver Johnson .22 LR conversions

Specifications

Frequently Asked Questions

What 1911 .22 conversions will this magazine work with?

This ProMag magazine is designed for Kimber, Nighthawk Custom / Bob Marvel, and Iver Johnson .22 LR conversion kits for the 1911 platform.

Can I clean this magazine easily?

Yes. The removable floorplate allows you to disassemble the magazine for thorough cleaning and inspection of the spring and components.

How do I know how many rounds are loaded?

The magazine features side witness windows that show the number of rounds remaining, so you can see your load status without removing the mag.

What's the capacity of this magazine?

This is a 10-round magazine designed for .22 LR conversions.