Magpul PMAG 20 LR/SR GEN M3 7.62×51 20rd Magazine

Magpul PMAG 20 LR/SR GEN M3 magazine for 7.62x51mm (.308 Winchester) rifles. This is a 20-round polymer magazine designed to feed SR-25/M110 pattern and compatible AR-10 platforms reliably.

Purpose-built to provide a lighter-weight alternative to steel magazines, the PMAG LR/SR GEN M3 supports consistent feeding through its constant-curve internal geometry and anti-tilt follower. It is intended for use in SR-25/M110 pattern rifles and other compatible AR-10 style systems where a 20-round 7.62×51 magazine form factor is required.

• True 20-round capacity for 7.62x51mm / .308 Winchester
• Polymer body with constant-curve internal geometry for smooth feeding
• Anti-tilt, self-lubricating follower to reduce binding
• High-quality stainless steel spring for corrosion resistance
• Flared floorplate for easier handling and improved drop protection
• Snap-on impact/dust cover to protect cartridges during storage and transit
• Low-profile ribs with aggressive front and rear texture for positive control
• Paint-pen dot matrix on the bottom panel for identification marking

Specifications & Construction

• Caliber/Cartridge: 7.62x51mm / .308 Winchester
• Capacity: 20 rounds
• Material: Polymer body; stainless steel spring; polymer follower
• Finish/Color: Black
• Made in the U.S.A.
• Operating method: Designed for semi-automatic rifle feeding

Compatibility & Intended Use

This magazine is optimized for SAAMI-spec 7.62×51/.308 Winchester ammunition and fits SR-25/M110 pattern rifles and a range of AR-10 style platforms. Specific compatible models referenced include DPMS LR-308 pattern rifles, SR-25, LaRue OBR and similar systems. Typical use is in precision and duty-oriented AR-10/SR-25 type configurations where a 20-round 7.62×51 magazine is required.

The PMAG 20 LR/SR GEN M3 is suitable for range use, precision rifle platforms, and duty-configured AR-10/SR-25 pattern rifles where reliable feeding, reduced weight, and cartridge protection are priorities.