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The Auto-Ordnance G21S is a factory-original stainless steel magazine built for Auto-Ordnance 1911 pistols chambered in .45 ACP. This 7-round magazine represents no-nonsense reliability that Auto-Ordnance users have come to expect from OEM parts.
The design centers on durable stainless steel construction with laser-welded seams for structural integrity. Clear witness holes let you verify your round count at a glance without removing the magazine. The controlled-tilt steel follower and heavy-duty music wire spring work together to ensure consistent feeding action with virtually no binding. The non-removable baseplate delivers a flush fit that sits seamlessly with your pistol frame, reducing snags and keeping the profile clean. Everything is machined to tight tolerances so the magazine seats in the magwell with a snug, rattle-free fit.
This is the standard magazine type included with Auto-Ordnance 1911 models like the 1911PKZ. It works as a replacement if you're looking for a spare or backup, and it's purpose-built to feed standard .45 ACP rounds reliably whether you're at the range or handling duty carry. The 7-round capacity keeps things traditional and fits the compact profile that makes the 1911 such an enduring design.
The G21S is designed specifically for Auto-Ordnance 1911 pistols, though many 1911 .45 ACP magazines share basic compatibility across brands. That said, some magazines work better with some guns than others, so fit can vary depending on your specific pistol. Auto-Ordnance magazines have a rounded, closed-style follower that's slightly different from some aftermarket designs, but this typically doesn't prevent use in other pistols.
The G21S and G21B use the same internal construction and feed system. The main difference is the finish: stainless steel versus blued steel. Stainless offers better corrosion resistance over time, making it a solid choice if you're exposed to moisture or run harder use cycles. Both are reliable factory OEM parts.
The non-removable baseplate means you can't take the magazine apart for detailed cleaning. You can still rinse and dry it like any other magazine, and internal springs hold up well. If you need full field takedown for deep cleaning, you might prefer the G21B or G21M models that have removable baseplates, but most users find the welded design equally reliable and worry-free.
Yes, 7 rounds is the standard factory capacity for most Auto-Ordnance 1911 models. This follows the traditional single-stack design. If you want higher capacity, you'll need to look at extended or specialty magazines from other makers.
The precision-machined witness holes on the sides let you count rounds without removing the magazine from your gun or disassembling it. Each hole marks a round position, so you can glance down and know exactly how many rounds you have loaded. This is handy at the range or if you need a quick ammo count during a reload.
Absolutely. This G21S is ideal as a spare or backup magazine for your Auto-Ordnance 1911. Many people keep extras on hand to save time reloading at the range and to have a backup in case one magazine goes down.
| UPC | 602686237024 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | G21S |
| Brand Fit | Auto-Ordnance |
| Caliber/Gauge | .45 ACP |
| Capacity | 7 |
| Color | Stainless |
| Model | |
| Model Fit | 1911 |
| Product Type | Magazine |
| Style | Detachable |
| Units per Box | 1 |
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