PMAG® 20 LR/SR GEN M3™
20 rounds. Battle tested reliability.
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MADE & ENGINEERED IN THE USA
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FREE SHIPPING
on orders over $75 -
100% SATISFACTION
guaranteed
20 rounds. Battle tested reliability.
MADE & ENGINEERED IN THE USA
FREE SHIPPING
on orders over $75
100% SATISFACTION
guaranteed Carry more capability without adding bulk. The PMAG 20 LR/SR GEN M3 pairs a compact 20-round profile with Magpul’s proven feeding geometry and long-life stainless spring to give precision platforms the low profile they need and the reliability they demand. Engineered with an anti-tilt self-lubricating follower and next-generation crush-resistant polymer, the PMAG 20 delivers smooth feeding, easy serviceability, and durable performance where it matters most.
Made in the USA.
NSN: MAG291-BLK 1005-01-689-8339
Features


20-ROUND RELIABILITY
Anti-tilt, self-lubricating follower, a high-quality stainless steel spring, and constant-curve internal geometry ensure smooth feeding
EASY IDENTIFICATION
Use the paint pen dot matrix to easily identify your different loads when it's crunch time




RUGGED MAGPUL POLYMER
Next-generation impact and crush-resistant polymer construction with a high-quality stainless steel spring for corrosion resistance
Ribbed gripping surface and a new aggressive front and rear texture for positive magazine handling
E.A.R.
Export Administration Regulations Controlled Product
EXPORT NOTICE: This is an item controlled for export by the Export Administration Regulations (EAR) under the Commerce Control List (CCL). These controls take the form of export regulations and license requirements. As part of the express consideration provided for receipt of Magpul's goods, technical data and/or services, you, our customer, acknowledge that the export, re-export or other transfer, directly or indirectly, of the goods, technical data and/or services provided by Magpul in violation of U.S. law is prohibited. Customers acquiring controlled goods, technical data and/or services from Magpul shall be responsible for obtaining any necessary U.S. or other government authorization required to ensure compliance with applicable export laws. (See Magpul Compliance Notices page for more information).
PLEASE NOTE: Certain U.S. jurisdictions restrict firearm magazines sales. Magpul Industries cannot process sales/shipments prohibited by law. A list of states and municipalities restricting firearm magazine sales is available here.
WARNING: Observe safe firearm handling practices at all times. Failure to do so may result in serious bodily injury or death. Magpul Industries shall not be responsible for injury, death, or property damage resulting from faulty installation, misuse, illegal use, or modification of this product.
| Collection | 2026 NEW Colors |
|---|---|
| Caliber | 7.62x51mm / .308 Winchester |
| Platform | AR10, M110, SR25 |
| Capacity | 20 |
| Weight | 5.9 oz. |
| Length, max | 6.5 in. |
| Compatibility | 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, S&W M&P10, SIG716, and others* |
| Other Specs |
Optimized for use with SAAMI-spec 7.62x51/.308 Winchester ammunition. *NOTE: 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. 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. |