Colt Mfg SP62103RP USGI 20-Round 5.56x45mm NATO Blued Aluminum Magazine

The Colt Mfg SP62103RP USGI 20-round 5.56x45mm NATO magazine is a no-frills, proven aluminum magazine built to military spec and trusted by shooters who run AR-15s hard. If you're setting up a rifle for hunting, tactical training, competition, or range work, this is the kind of magazine you grab because it works—no flash, no marketing, just reliable ammunition storage that's been field-tested for decades. The 20-round capacity strikes a practical balance: low enough to keep your rifle handy and quick-handling, substantial enough for most shooting scenarios without frequent reloads.

Built from aluminum with a blued finish, this USGI-pattern magazine feeds both .223 Remington and 5.56x45mm NATO ammunition, so you've got flexibility with your ammo selection. The straightforward design means fewer parts to wear out and a magazine that cycles reliably in any AR-platform rifle configured for standard magazines. Whether you're breaking in a new rifle, building a backup mag kit for your go-to gun, or stocking up for a season, Colt's track record with military-spec hardware speaks for itself.

Shooters who prefer simplicity and durability over trendy designs understand that a 20-round aluminum magazine has earned its place in the AR world through genuine performance, not marketing hype. This is the kind of magazine that'll still be running when fancier alternatives are gathering dust.

Key Features

• 20-round capacity—practical for hunting, tactical training, and range sessions
• USGI-pattern design—compatible with standard AR-15 platforms
• Aluminum construction with blued finish—durable and corrosion-resistant
• Feeds both .223 Remington and 5.56x45mm NATO ammunition
• Field-proven military-spec reliability

Specifications

Frequently Asked Questions

What rifles does this magazine fit?

This USGI-pattern magazine is compatible with any AR-15 rifle configured for standard magazines, including modern sporting rifles, precision rifles, and tactical platforms that accept common AR magazines.

Can I use this magazine with both .223 Remington and 5.56 NATO ammunition?

Yes. This magazine reliably feeds both .223 Remington and 5.56x45mm NATO ammunition, giving you flexibility in ammo selection at the range or in the field.

Why choose a 20-round magazine over higher-capacity options?

A 20-round capacity keeps your AR-15 lighter and more maneuverable than higher-capacity magazines, making it ideal for hunting, tactical training, and situations where quick handling matters. It also maintains a lower profile in many shooting positions.

Is this magazine new or surplus?

This Colt magazine ships in retail packaging and represents current production, not military surplus.