Magpul PMAG LR/SR G-M3 w/Window .308 Win 20rd for AR-308 BLK

The 7.62x51 NATO (.308 Winchester) PMAG LR/SR GEN M3 Window is a lightweight, cost effective, high reliability magazine for SR25/M110 pattern rifles featuring true 20 or 25-round capacity, next-generation impact and crush resistant polymer construction, constant-curve body, and anti-tilt follower.
Designed specifically for SAAMI-spec ammunition, the PMAG LR/SR also features transparent MagLevel™ windows to allow rapid visual identification of approximate number of rounds remaining.