Lightweight, cost effective, and highly reliable, the PMAG 25 is the ultimate magazine for SR25/M110 pattern rifles. Intended for longer than SAAMI-spec match ammunition (up to 2.830" OAL), the PMAG 25 features a constant-curve body, anti-tilt follower, and a transparent MagLevel window to instantly confirm the approximate number of rounds left in the magazine. The PMAG 25 is also made from impact and crush resistant polymer for a lifetime of reliable service. Features: Compatible with SR25/M110 pattern riflesIntended for longer than SAAMI-spec match ammunition (up to 2.830" OAL)Transparent MagLevel windowConstant-curve bodyAnti-tilt follower Magpul 25rd M118 LR/SR PMAG GEN M3 for SR25/M110 Pattern Rifles w/ Anti-Tilt Follower & Window, Black MAG577-BLK