The Magpul PMAG 20 LR/SR GEN M3 – Olive Drab Green (ODG) is a durable, lightweight 20-round polymer magazine designed for 7.62×51 NATO / .308 Winchester AR-pattern rifles. Built for the SR25/M110 magazine pattern, this magazine delivers dependable feeding and rugged reliability for modern AR-10 and large-frame AR platforms.

Constructed from Magpul’s next-generation impact- and crush-resistant polymer, the GEN M3 PMAG is engineered to withstand demanding environments while maintaining consistent performance. The magazine features constant-curve internal geometry, a self-lubricating anti-tilt follower, and a corrosion-resistant stainless steel spring to ensure smooth feeding and long service life.

For enhanced handling, the PMAG 20 LR/SR GEN M3 includes aggressive front and rear texturing, allowing a secure grip during reloads in any condition. A paint-pen dot matrix panel helps shooters mark and identify magazines easily, while the slim, durable floorplate aids extraction from magazine pouches and allows quick disassembly for cleaning and maintenance.

Designed for compatibility with many SR25-pattern rifles, this magazine works with platforms such as the Armalite AR-10A, DPMS LR-308, KAC SR-25, LMT MWS, Ruger SR-762, SIG716, and similar .308 AR systems.

Finished in Olive Drab Green, the PMAG 20 LR/SR GEN M3 offers a distinctive tactical appearance while delivering the trusted reliability shooters expect from Magpul magazines.