The Magpul PMAGA(R) 10 LR/SR Gen M3 7.62x51mm 10-rd. Magazine is the smallest possible mag you can get for your SR25/M110 pattern rifle. Not only that, it's tough and reliable. 7.62x51mm NATO (.308 WinchesterA(R)) 10-round capacity that does not require limiters, pins, rivets, etc. Durable, but lightweight, polymer construction Constant-curve internal geometry for smooth feeding Anti-tilt, self-lubricating follower Stainless steel spring resists corrosion Flared, easily removable floor plate fits many pouches Impact/Dust cover keeps debris out and protects cartridges during storage and transit For use with 7.62x51 M118LR or other .308 Winchester ammunition with a maximum OAL of 2.830". 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 othersNote: Compatible with older model Bushmaster .308 ORC, Remington R-25, and DPMS LR308 rifles, but not optimized for bolt lock functionality with newer models based on the DPMS GII design. To accommodate longer than SAAMI-spec match ammunition, this magazine may not drop free from all makes of lower receivers. Order today!