Product Details
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 Lightweight 20-round design for SR25 / M110 pattern rifles chambered in 7.62×51 NATO (.308 Winchester) Long-life stainless steel spring, anti-tilt self-lubricating follower, and constant-curve internal geometry ensure smooth, reliable feeding Easy-to-disassemble flared floorplate aids extraction, handling, and provides better drop protection in tight double/triple pouches Low-profile ribs and aggressive front/rear texture deliver positive control in all environments Paint-pen dot matrix on the bottom panel enables fast, in-field load identification Next-generation impact- and crush-resistant polymer construction with corrosion-resistant spring for long service life Designed for SAAMI-spec ammunition and roughly half the weight of comparable steel magazines 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
Technical Specifications
| 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. |
Additional Resources
How to use the Magpul Dot Matrix
Compliance Notices
