This is the Magpul PMAG AR-10/SR-25 25-round magazine in .308 Winchester / 7.62×51 NATO.

The 7.62×51 NATO (.308 Winchester) PMAG 25 LR/SR GEN M3 Window is a lightweight, cost-effective, high-reliability magazine for SR25/M110 pattern rifles featuring true 25-round capacity, constant-curve body, anti-tilt follower, and features transparent windows to allow rapid visual identification of an approximate number of rounds remaining.

The PMAG 25LR/SR brings GEN M3 improvements to the LR line along with “more of a good thing” in the form of 25 rounds of capacity. Keep track of those rounds with MagLevel™ Window functionality, for the first time, now available in a 7.62 PMAG.

Made in the U.S.A.

Features:

• Commercial rifle compatibility includes the Armalite AR-10A, Colt LE901-16S, CORE Rifle Systems CORE30, JP Enterprises LRP-07, KAC SR25, LaRue OBR, Les Baer .308, LMT .308 MWS, LWRCI REPR, Mega Arms MATEN, Noveske Gen III N6, POF P-308, Ruger SR-762, Ruger Precision Rifle, S&W M&P10, SIG716, and others*
• True 25-round capacity
• Next-generation impact and crush-resistant polymer construction
• Constant-curve internal geometry for smooth feeding
• Anti-tilt, self-lubricating follower for increased reliability
• High-quality stainless steel spring for corrosion resistance
• Flared floorplate aids magazine handling and disassembly yet is slim enough for use with many pouches

*NOTE: NOT compatible with Armalite AR-10B, Springfield Armory M1A, Rock River Arms LAR8, FN SCAR 17S, PTR-91, HK417 or any other rifles that utilize M14, FN FAL, or HK 91/G3 patterned magazines.

To accommodate longer than SAAMI-spec match ammunition, this magazine may not drop free from all makes of lower receivers.