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The FN 502 is one of the most feature-packed .22 LR pistols on the market, and its magazines deserve the same level of quality. This is the genuine OEM 15-round magazine from FN America, built to the same specs and tolerances as the one that came with your pistol. No aftermarket compromises, no guessing on fit — just the real thing.
Construction is a mix of lightweight polymer for the body and base plate, with blued steel feed lips for precise round control and a high-strength steel wire spring to keep consistent pressure through all 15 rounds. The anti-tilt polymer follower works with that spring to keep rounds feeding cleanly and reliably, which matters a lot with rimfire cartridges that can be finicky in some designs. Reports from owners across multiple platforms back this up — running a wide variety of .22 LR loads through these mags without feed issues.
One feature that gets overlooked but is genuinely useful is the side-loading compression button. Press it down to relieve spring tension and loading becomes noticeably easier, especially toward the top of the mag. There's also a loading channel along the side that doubles as a round count window, so you can check how many rounds you have left without dropping the mag.
This magazine is a great pickup whether you're stocking up for a long range day, replacing a mag that got lost or damaged, or just want the peace of mind of having a backup on hand. The FN 502 is built for high round count training sessions, and having extra magazines in rotation is part of making that work smoothly.
Yes, the 15-round magazine is compatible with both the FN 502 Tactical and the FN 502 MRD. The MRD typically ships with 10-round flush-fit magazines, but it is designed to accept the 15-round mag from the Tactical model. Just keep in mind the 15-rounder extends slightly past the grip.
This is a 100% OEM factory magazine made by FN America, the same manufacturer as the pistol itself. It is produced to the same specifications and tolerances as the magazine that ships with the gun, so fit and function are exactly what you would expect from the factory.
The side-loading compression button is located on the side of the magazine body. Pressing it down relieves tension from the steel wire spring, making it much easier to press rounds in — especially when the mag is getting close to full. It is a small feature that makes a noticeable difference after a few hundred rounds at the range.
The combination of blued steel feed lips and an anti-tilt follower gives this magazine a solid foundation for reliable feeding across various .22 LR loads. Range feedback from FN 502 owners consistently points to smooth feeding with a wide variety of ammunition types, from bulk plinking loads to higher-end target rounds. Like any rimfire setup, keeping the magazine clean will help maintain consistent performance.
Yes, it does extend slightly below the grip compared to the flush-fit 10-round version. That said, it is not an awkward amount of protrusion and does not negatively affect handling or control. Most people find it a non-issue, especially given the added capacity you get in return.
This listing includes one magazine. If you are looking to stock up for longer range sessions, buying a couple at once is a smart move since spare FN 502 magazines have been known to go in and out of availability.
| UPC | 845737013455 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 20-100503 |
| Caliber/Gauge | .22 LR |
| Capacity | 15 |
| Color | Black |
| Length | 5.2500 |
| Model | |
| Package Height | 0.2 |
| Package Width | 5.3 |
| Product Type | Magazine |
| Shipping Weight | 0.2 |
| State Restriction (CA) | NO DIRECT SHIP TO CALIFORNIA |
| State Restriction (OR) | NO SALE TO OREGON |
| State Restriction (RI) | NO DIRECT SHIP TO RHODE ISLAND |
| State Restriction (WA) | NO DIRECT SHIP TO WASHINGTON |
| Style | Detachable |
| Units per Box | 1 |
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