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Magpul PMAG 20 Gen M3 AR/M4 Magazine .223/5.56 NATO 20 Rounds
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$18.99
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SKU: WX2*0705594
Overview
Built for AR/M4-pattern rifles, this 20-round magazine is intended for shooters who want a compact .223/5.56 NATO option for range work, training, or field use where a shorter magazine profile can be practical. Its polymer construction, constant-curve internal geometry, and 4-way anti-tilt follower are designed to support smooth feeding, while the redesigned bolt catch notch adds clearance and the over-travel insertion stop helps guide proper seating. A flared, removable floor plate and compatibility with Colt-spec AR15/M4 platforms, along with other listed rifles, make it a versatile choice for users working across supported systems. Dust cover is not included and is sold separately.
Why Hunters Choose the Magpul
20-round Capacity
Suits compact rifle setups and
Durable, Lightweight
Polymer construction keeps the magazine
Constant-curve Internal
Geometry is designed to support
4-way Anti-tilt,
Self-lubricating follower adds reliable internal
Usgi-spec Stainless
Steel spring is specified to
Key Features
- 20-round capacity for .223/5.56x45mm NATO cartridges
- Durable, lightweight polymer construction
- Constant-curve internal geometry for smooth feeding
- 4-way anti-tilt, self-lubricating follower
- USGI-spec stainless steel spring resists corrosion
- Redesigned bolt catch notch provides increased bolt catch clearance
- Flared, easily removable floor plate fits many pouches
Best Used For
- Ideal for AR/M4 owners needing a 20-round magazine for range sessions or field carry.
- Suited to hunters wanting a compact magazine profile for seated shooting positions.
- Good for users running Colt-spec AR15/M4 platforms and compatible rifles listed by the manufacturer.
- Appropriate for shooters who prefer polymer magazines with a removable floor plate for pouch use.
Specifications
| Additional Compatibility | HKA 416/MR556A1/M27 IAR, British SA-80, FN SCAR MK 16/16S, and others |
|---|---|
| Bolt Catch Clearance | Increased bolt catch clearance |
| Bolt Catch Notch | Redesigned bolt catch notch |
| Caliber | .223/5.56x45mm NATO |
| Capacity | 20 rounds |
| Construction Material | Polymer |
| Dust Cover Included | No |
| Dust Cover Sold Separately | Yes |
| Floor Plate | Flared, easily removable floor plate |
| Follower | 4-way anti-tilt, self-lubricating follower |
| Internal Geometry | Constant-curve |
| Over Travel Insertion Stop | Yes |
| Platform Compatibility | Colt-spec AR15/M4 platforms |
| Spring Material | USGI-spec stainless steel |
Pros
- 20-round capacity suits compact rifle setups and controlled ammunition management.
- Durable, lightweight polymer construction keeps the magazine practical for carry and handling.
- Constant-curve internal geometry is designed to support smooth feeding.
- 4-way anti-tilt, self-lubricating follower adds reliable internal guidance.
- USGI-spec stainless steel spring is specified to resist corrosion.
- Redesigned bolt catch notch provides increased bolt catch clearance.
Considerations & Trade-offs
- 20-round capacity may be less suitable for users who want extended strings without frequent reloads.
- Optimized for Colt-spec AR15/M4 platforms, so compatibility with other rifles should be checked carefully before use.
- Dust cover is not included and is sold separately, which adds an extra purchase if you want that accessory.
- Polymer construction keeps weight down, but it may not suit buyers who prefer a metal magazine body.
Suggested Comparisons
- AR-15/M4 pattern magazines
- Other .223/5.56 NATO magazines
- Higher-capacity rifle magazines
Suggested Accessories
- Magazine pouch
- Dust cover
- Magazine loader
- Range bag
Frequently Asked Questions
What cartridge and capacity is this magazine designed for?
It is designed for .223/5.56x45mm NATO and has a 20-round capacity.
What platform is it optimized for?
It is optimized for Colt-spec AR15/M4 platforms.
Does it work with other rifles besides AR15/M4 platforms?
The product data says its modified internal and external geometry allows operation with a range of rifles, including the HK 416/MR556A1/M27 IAR, British SA-80, and FN SCAR MK 16/16S, among others.
What construction and follower features are listed?
The magazine is described as durable, lightweight polymer construction with a constant-curve internal geometry, a 4-way anti-tilt self-lubricating follower, and a USGI-spec stainless steel spring.
Is a dust cover included?
No. The product data states that the dust cover is not included and is sold separately.