SKU: DRMA27
UPC: 708279014727
MPN: DRM-A27
The Pro Mag DRM-A27 is a 30-round drum magazine built for Glock 17 and 19 9mm pistols, giving shooters triple the standard 17-round Glock capacity in a single unit. It also drops into Glock models 26 and 34, plus any 9mm AR-15 carbine that runs Glock-pattern magazines. That cross-platform fit makes it a practical choice for range days, training drills, and anyone who wants to cut down on reloads during high-round-count sessions. Made in the USA and covered by a lifetime warranty against manufacturer defects, it's a high-capacity option that works across a shooter's Glock 9mm lineup without buying separate mags for each gun.
The body is molded from a proprietary DuPont Zytel based polymer, the same family of reinforced nylon used in many factory pistol frames, which keeps weight manageable at this 30-round capacity. Inside, a heat-treated stainless steel spring drives an injection-molded follower through a patented feed system designed for consistent presentation round after round. Pro Mag field tested this drum with its competition shooting team before release, working out the feed geometry that tends to give large-capacity magazines trouble. The drum measures roughly 14 inches tall, 7 inches wide, and 4 inches deep when loaded, so it sits well below the bore line and clears most rests and bench setups. Loading is straightforward through the feed lips, no separate winding key required.
This drum earns its keep on the range, in carbine training, and in any situation where fewer magazine changes means more trigger time. Pair it with a Glock-pattern 9mm carbine and you've got a high-volume plinking or drill setup that feeds from the same magazine as your pistol. We stock a full range of replacement and high-capacity magazines, including standard 33-round Glock stick magazines if you want a slimmer alternative. Shooters running other Glock-compatible options can also check our Glock 19 polymer magazines for everyday carry and flush-fit use.
It fits Glock 9mm pistol models 17, 19, 26, and 34. It also works in 9mm AR-15 carbines that accept Glock-pattern magazines, so the same drum can run across your pistol and carbine.
The drum holds 30 rounds of 9mm. That's nearly double a standard 17-round Glock 17 magazine, which means fewer reloads during range sessions, training drills, and high-round-count practice.
The body is molded from a proprietary DuPont Zytel based polymer. The spring is heat-treated stainless steel and the follower is injection molded, working together through a patented feed system for reliable round presentation.
No. The DRM-A27 is an aftermarket magazine made by Pro Mag in the USA. Glock does not authorize or warrant third-party magazines, but Pro Mag backs it with a lifetime warranty against manufacturer defects.
Yes. Any AR-15 carbine built to accept Glock-pattern 9mm magazines will run this drum, letting you share magazines between your Glock pistol and your pistol-caliber carbine.
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Promag Mfg. Inc.
