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Magpul MAG577 SR/LR M118 PMAG M3 5/25 Round with Window - Black

In stock

The 7.62x51mm (.308 Winchester) PMAG 25 M118 LR/SR GEN M3 Window is a lightweight, cost effective, high reliability magazine for SR25/M110 pattern rifles using longer than SAAMI-spec match ammunition up to 2.830" OAL. Featuring a constant-curve body, anti-tilt follower, snap on Impact/dust cover, and transparent MagLevel windows to allow rapid visual identification of approximate number of rounds remaining. Sold pinned to 5 rounds out of the original 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
  • Long life USGI-spec stainless steel spring for parts commonality
  • Over-travel insertion stop on the spine
  • Ribbed gripping surface and new aggressive front and rear texture for positive magazine handling
  • Paint pen dot matrix panels on the bottom of the body to allow for identification marking
  • Flared floorplate aids magazine handling and disassembly yet is slim enough for use with many double and triple pouches
  • Pop-off Impact/Dust Cover to minimize debris intrusion and for ammunition protection in storage and transit
  • Made in USA
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.

You get:

  • (1) 5/25 capacity magazine

    Compatible with:

    • AR-308 magwells and firearms chambered in 7.62x51 / .308 Winchester or similar
    • See above list for a list of specific compatible firearms. 

    Installation Difficulty: 

    Tools required: No

    Installation notes: Load'er up, Ram'er in

    Manufacturer Part No: MAG577-BLK

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