Rock Island 55086 M20P Blued Detachable 10-Round Magazine for .22 LR M20P/M14Y

The Rock Island 55086 M20P blued detachable magazine is a factory replacement or spare magazine designed for Rock Island Armory's M20P and M14Y .22 LR rifles. Whether you're building up a battery of mags for a day at the range or need a reliable backup, this 10-round magazine feeds .22 LR ammunition reliably through your Rock Island platform. The blued metal finish matches the aesthetic of these rifles and resists corrosion with proper care.

A quality spare magazine is one of those items that pays for itself the first time you need it—either because your primary mag is down for cleaning, or because you want to load up a few rounds ahead and keep shooting. Ten rounds is a practical capacity for most .22 LR shooting, whether you're training, plinking, or hunting small game. Because this is a factory Rock Island magazine, fitment and function are guaranteed in your M20P or M14Y.

Rock Island Armory magazines are built to work with their rifles, not as an afterthought. Keep a couple on hand so downtime is never about magazine changes.

Key Features

• 10-round capacity in .22 LR
• Detachable design for quick changes and field cleaning
• Blued metal construction
• Factory Rock Island specification—guaranteed fit for M20P and M14Y

Specifications

Frequently Asked Questions

What rifles does this magazine fit?

This magazine is designed specifically for the Rock Island Armory M20P and M14Y .22 LR rifles. It will not fit other platforms.

Is this an original Rock Island factory magazine?

Yes. This is the factory Rock Island Armory magazine (part number 55086), designed to Rock Island's specifications for their M20P and M14Y rifles.

What's the capacity?

This magazine holds 10 rounds of .22 LR ammunition.

Can I use this as a spare or backup magazine?

Absolutely. Having a spare magazine means you can keep shooting while cleaning or servicing your primary mag, or load multiple magazines ahead of time for a range session.