MAGPUL PMAG M3 WINDOW 7.62 20RD BLK

Description

The PMAG 20 LR/SR GEN M3 Window is built for SR25 and M110-pattern rifles running 7.62×51 NATO, and it answers a specific need: a compact 20-round profile that doesn’t sacrifice ammunition awareness. Where a standard opaque magazine requires you to drop the mag to assess your round count, the dual MagLevel translucent windows on both sides of the body let you read your load at a glance. A painted indicator coil on the stainless spring moves with the remaining rounds, giving a continuous visual reference rather than a rough estimate from a single port.

The GEN M3 feeding geometry uses a constant-curve internal design that keeps each round presented at the same angle from full to empty, which matters on a precision or designated marksman platform where consistent chambering contributes directly to shot-to-shot reliability. The anti-tilt, self-lubricating follower works alongside that geometry to eliminate the tipping and drag that cause feed failures under hard use. The stainless spring resists corrosion and maintains consistent tension over the life of the magazine without lubrication.

The polymer body is built to handle impact and crush loads — the kind of stress a working magazine takes from vehicle transport, drops onto hard surfaces, and extraction from tight double pouches. The flared floorplate aids one-handed extraction from those same pouches, which is a practical consideration for both precision competition and field use. Compatible with DPMS, SR25, and LaRue OBR platforms chambered in .308 Winchester or 7.62 NATO. Made in the USA.