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Magazine selection by platform

AR-15: Magpul PMAG Gen M3 is the standard. GI aluminum mags work but are single-use in the sense that you should replace them when they show wear. Do not cheap out on magazines for a defensive gun.

AR-10 / .308: Magpul PMAG LR/SR Gen M3 is the AR-10 version. DPMS-pattern and SR-25-pattern lowers take the same magazine. Verify your lower pattern before ordering.

Pistol: Factory OEM magazines are usually the right answer. Sig P320 runs Sig mags, Glock runs Glock mags, M&P runs M&P mags. Aftermarket pistol mags vary widely in quality — we can advise on what works and what causes problems.

Western Sport carries magazines for the platforms we sell — pistols, rifles, and shotguns — from the brands that actually hold up: Magpul, Glock, Sig, Daniel Defense, and more. A gun is only as reliable as the magazine feeding it, so we stock the ones we’d run ourselves.

What we stock

Factory and aftermarket mags in standard and higher capacities — AR-15 PMAGs, pistol mags for Glock, Sig, and S&W, drums, and extended options. Not sure a magazine fits your exact model or is legal where you live? Ask before you buy.

Picking magazines

Confirm the exact model and caliber — “fits a Glock” isn’t specific enough when a 9mm and a .40 mag can look identical. For a defensive gun, buy several and rotate them; springs and feed lips fail first. For range use, polymer mags like PMAGs take abuse and keep running. Stick with proven brands here — a cheap magazine is the fastest way to induce a malfunction.

Why buy here

Authentic product, fair pricing, and people who know which mags run. Order online and magazines ship to your door where state capacity laws allow. Browse the selection below.