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Magpul
The Magpul PMAG M3 Window 7.62 20-round magazine is a lightweight, reliable choice for SR25/M110 pattern rifles chambered in 7.62x51 NATO (.308 Winchester). Built from impact and crush-resistant polymer, this modern magazine combines durability with practical features that make it a solid step up from heavier steel alternatives. Whether you're running a precision rifle at the range or in the field, the M3 Window delivers the dependability Magpul is known for, at a fraction of the weight.
One standout feature is the dual-side transparent MagLevel system—translucent windows on both sides let you quickly estimate your round count without opening the magazine. High-visibility indicator coils and numerical markers on the body make it easy to see exactly where you stand on ammunition at a glance. The stainless-steel spring resists corrosion, while the anti-tilt, self-lubricating follower ensures consistent feeding. Constant-curve internal geometry guarantees reliable chambering, every time.
The ergonomics are thoughtfully engineered too. Low-profile ribs and aggressive texturing front and rear give you a solid grip during magazine changes in tough conditions. The flared floorplate makes extraction easier, improves drop protection, and stays slim enough to work in tight double magazine pouches. When maintenance is needed, the magazine disassembles simply for cleaning. A paint pen dot matrix at the bottom lets you mark your mags for easy identification in the field or at the armory.
Magpul designed this magazine for SAAMI-spec ammunition and engineered it to last roughly as long as the barrel itself—a serious lifespan for a polymer mag. If you're looking to lighten your load without sacrificing feeding reliability, this 20-rounder is a no-brainer for .308 shooters.
| Capacity | 20 rounds |
| Caliber | 7.62x51 NATO (.308 Winchester) |
| Platform Compatibility | SR25/M110 pattern rifles |
| Material | Impact and crush-resistant polymer body; stainless-steel spring |
| Window Type | Dual-side transparent with MagLevel indicators |
| Floorplate | Flared for extraction and drop protection |
| Follower | Anti-tilt, self-lubricating |
The PMAG M3 Window 20-round is designed for SR25/M110 pattern rifles chambered in 7.62x51 NATO (.308 Winchester). Verify your specific rifle's magazine well and feeding system match this platform before purchasing.
Dual transparent windows on both sides of the magazine let you see inside without removing the mag. A high-visibility indicator coil on the spring and numerical markers on the body allow you to quickly estimate how many rounds remain, helping you manage your ammunition supply on the fly.
Yes—the PMAG M3 weighs significantly less than standard-issue steel magazines, helping reduce overall load weight without sacrificing durability or feeding reliability.
Yes. Accessories designed for the 7.62x51 NATO PMAG family are compatible with the M3 Window magazine, giving you flexibility to customize and adapt as your needs change.
Magpul
The Magpul PMAG M3 Window 7.62 20-round magazine is a lightweight, reliable choice for SR25/M110 pattern rifles chambered in 7.62x51 NATO (.308 Winchester). Built from impact and crush-resistant polymer, this modern magazine combines durability with practical features that make it a solid step up from heavier steel alternatives. Whether you're running a precision rifle at the range or in the field, the M3 Window delivers the dependability Magpul is known for, at a fraction of the weight.
One standout feature is the dual-side transparent MagLevel system—translucent windows on both sides let you quickly estimate your round count without opening the magazine. High-visibility indicator coils and numerical markers on the body make it easy to see exactly where you stand on ammunition at a glance. The stainless-steel spring resists corrosion, while the anti-tilt, self-lubricating follower ensures consistent feeding. Constant-curve internal geometry guarantees reliable chambering, every time.
The ergonomics are thoughtfully engineered too. Low-profile ribs and aggressive texturing front and rear give you a solid grip during magazine changes in tough conditions. The flared floorplate makes extraction easier, improves drop protection, and stays slim enough to work in tight double magazine pouches. When maintenance is needed, the magazine disassembles simply for cleaning. A paint pen dot matrix at the bottom lets you mark your mags for easy identification in the field or at the armory.
Magpul designed this magazine for SAAMI-spec ammunition and engineered it to last roughly as long as the barrel itself—a serious lifespan for a polymer mag. If you're looking to lighten your load without sacrificing feeding reliability, this 20-rounder is a no-brainer for .308 shooters.
| Capacity | 20 rounds |
| Caliber | 7.62x51 NATO (.308 Winchester) |
| Platform Compatibility | SR25/M110 pattern rifles |
| Material | Impact and crush-resistant polymer body; stainless-steel spring |
| Window Type | Dual-side transparent with MagLevel indicators |
| Floorplate | Flared for extraction and drop protection |
| Follower | Anti-tilt, self-lubricating |
The PMAG M3 Window 20-round is designed for SR25/M110 pattern rifles chambered in 7.62x51 NATO (.308 Winchester). Verify your specific rifle's magazine well and feeding system match this platform before purchasing.
Dual transparent windows on both sides of the magazine let you see inside without removing the mag. A high-visibility indicator coil on the spring and numerical markers on the body allow you to quickly estimate how many rounds remain, helping you manage your ammunition supply on the fly.
Yes—the PMAG M3 weighs significantly less than standard-issue steel magazines, helping reduce overall load weight without sacrificing durability or feeding reliability.
Yes. Accessories designed for the 7.62x51 NATO PMAG family are compatible with the M3 Window magazine, giving you flexibility to customize and adapt as your needs change.
