Magpul® PMAG 20 LR/SR GEN M3, 7.62x51 Magazine

(15 reviews)
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Magpul PMAG® 20 LR/SR GEN M3, 7.62x51 Magazine

The PMAG® 20 LR/SR GEN M3 brings many of the M3 improvements to the 20 round 7.62 NATO/.308 Winchester SR-25 magazine form factor. All of the GEN M3 improvements are here in the 20 round capacity of our previous design. The PMAG® 20 LR/SR GEN M3 replaces the MAG243 in our line.

The 7.62x51 NATO (.308 Winchester) PMAG® 20 LR/SR GEN M3 is a lightweight, cost effective, high reliability magazine for SR25/M110 pattern rifles featuring true 20-round capacity, constant-curve body, anti-tilt follower and snap on Impact/Dust Cover. Designed specifically for military-issue MK11/M110 rifles and mil-spec ammunition (including M118LR), the PMAG 20LR/SR is less than half the weight of standard issue steel magazines and maintains a service life round count approximately equal to the rifle barrel itself.

  • Optimized for use with 7.62x51 NATO (.308 Winchester) ammunition with an overall cartridge length less than 2.820", including M118LR
  • Additional commercial rifle compatibility includes the KAC SR25, DPMS LR308, LWRCI REPR, LaRue OBR, Bushmaster .308 ORC, LMT .308 MWS, Remington R-25, POF P-308, JP Enterprises LRP-07, Les Baer .308, Colt LE901-16S, the new Armalite AR-10A, S&W M&P10, and others. NOTE: NOT compatible with Armalite AR-10B, Noveske N6, 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
  • Next-generation impact and crush resistant polymer construction
  • Constant-curve internal geometry for smooth feeding
  • Anti-tilt, self-lubricating follower for increased reliability
  • Multi-use Impact/Dust Cover keeps dust and dirt out of the magazine and protects the top cartridge from potential damage during storage and transit
  • High-quality stainless steel spring for corrosion resistance
  • 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 pouches
Made in the U.S.A.


  • 5
    Magpul 308/7.62x51 magazine

    Posted by D Striz on 1st Jan 2015

    These magazines fit the mag well tightly on my DPMS .308. Release perfectly, smooth feeding and I never seem to have an issue. Good price and fast shipping.

  • 5
    typical Pmag

    Posted by Unknown on 3rd May 2014

    Just like all my 5.56 Pmags this is typically Magpul quality. No complaints.

  • 5
    Good Great Excellent

    Posted by K... on 10th Apr 2014

    Good price, Great product, Excellent service and Shipping!

  • 5
    Magpul PMAG® 20 LR/SR GEN M3, 7.62x51 Magazine

    Posted by Ruben Reschman on 20th Mar 2014

    Magazines arrived promptly sealed in factory packaging with no problems. Good Job!

  • 5
    Super fast shipping

    Posted by Hunter on 22nd Jan 2014

    Had hard to find pmags for 7.62,and best price I could find and $5 dollars for 2 day shipping can't bet it. Thanks skdtac from a very happy and returning new customer

  • 5
    Oh man this is awesome!

    Posted by CharlieTrooper on 17th Jan 2014

    This magazine is built so well, I can't wait to mate this with ammo and my soon to be POF P-308 Rifle. I have trusted Magpul for several years as I have yet to see one fail. Even the Dust cover is extremely tight. Well manufactured product. Would recommend, I will be buying more on my 1 magazine a month policy.