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ProMag stepped up to fill a gap that Five-seveN owners have wanted to fill for years—a 30-round magazine option that actually works. If the standard 20-round capacity leaves you wanting more trigger time between reloads, this extended magazine delivers 50 percent more rounds in a package that's still manageable to carry and manipulate.
The build quality here matters. The housing and follower are constructed from injection-molded, impact-resistant glass-filled nylon polymer that resists cracking under stress. The magazine spring is precision-wound from heat-treated chrome-silicon wire, which is the same material standard for reliable spring performance across the industry. All components are made in the USA.
What separates this from other extended magazine attempts is attention to ergonomics. The molded grip sleeve fills the space between the bottom of your Five-seveN's grip frame and the magazine baseplate, eliminating that awkward gap and giving you a continuous surface to work with. The overall length comes in at 7.25 inches, which does extend your grip, but that extension is useful—it gives your pinky somewhere to go instead of hanging off the back. You'll also find witness holes down the sides so you can see your round count at a glance.
Like most extended magazines, expect a break-in period. The first few loadings may feel stiff, but the magazine eases up once you cycle the follower a few times. Some users report filling to 27 or 28 rounds instead of the full 30 delivers the most reliable feeding, while others load all 30 without issue—gun forums prove that individual fit varies. The injection molding process can leave minor imperfections, but these smooth out with normal use. If you're the tinkering type, some owners report that gentle smoothing of any rough spots inside the magazine improves feeding consistency.
Most owners report good reliability after a minor break-in period. The magazine may feel stiff during initial loadings, but it eases up once the follower cycles. Some find that loading to 27 or 28 rounds instead of the full 30 delivers the most consistent feeding, while others load all 30 without issue. Minor imperfections from the molding process smooth out naturally with use.
This gives you 50 percent more capacity than the standard 20-round FN magazine. The trade-off is that factory magazines typically have tighter tolerances and feed more predictably, while this ProMag requires some break-in time. The real advantage here is capacity and cost—if you want to extend your range sessions, this does the job.
Yes. The molded sleeve fills the gap between the grip frame and magazine baseplate, which gives your pinky a place to grip instead of hanging off the back. Combined with the extended length, it creates a more cohesive grip surface that most owners find more comfortable during extended shooting sessions.
The extended length and molded grip sleeve can affect how freely the magazine drops when empty. Some users report needing to press or pull the magazine out manually rather than gravity dropping it. This isn't a reliability issue—it's just part of the extended design. Factory magazines will still drop freely for comparison.
| UPC | 708279008863 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | FNH-A2 |
| Brand Fit | FN |
| Caliber/Gauge | 5.7 x 28 mm |
| Capacity | 30 |
| Color | Black |
| Length | 7 |
| Model | |
| Model Fit | Five-seveN |
| Package Height | 1.5 |
| Package Width | 5.0 |
| Product Type | Accessory-Magazines |
| Quantity | 1 |
| Shipping Weight | 0.25 |
| State Restriction (CA) | NO DIRECT SHIP TO CALIFORNIA |
| State Restriction (IL) | NO SALE TO ILLINOIS PICA |
| State Restriction (OR) | NO SALE TO OREGON |
| State Restriction (RI) | NO DIRECT SHIP TO RHODE ISLAND |
| State Restriction (WA) | NO DIRECT SHIP TO WASHINGTON |
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