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The Mec-Gar P229 14-round magazine gives you the extra capacity you've been looking for without a dramatic size increase. Whether you run this at the range, carry it as a backup, or use it as part of your regular rotation, you get two more rounds than the standard 12-round P229 mag while keeping dimensions tight enough that you won't notice a huge bulge in your holster or mag pouch.
Mec-Gar keeps things simple with proven materials. The tube is AISI 1010 carbon steel that's heat-treated for strength, paired with a high-tensile music wire spring and a high-impact polymer follower. The anti-friction coating (AFC) isn't just marketing talk either—it actually does reduce loading friction and helps prevent corrosion, which matters if you're running this thing regularly or storing it long-term. The base features a polymer +2 adapter that bumps capacity from 12 to 14 rounds.
Mec-Gar has been making magazines for decades, and they actually manufacture OEM magazines for Sig Sauer itself, so the fit and function are dialed in. Real-world feedback shows these magazines feed reliably through thousands of rounds. The interlinked internal components hold up under regular use, and the extended length only adds about 5/8 inch compared to standard magazines. New magazines do ship with stiff springs, so expect the first box or two to feel tight when loading—that's normal and they break in quickly.
This magazine fits the modern P229 with the wider tapered magazine well. If you have an older P229 with flat-sided magazines, confirm compatibility before ordering. The .40 S&W and .357 SIG designations mean either cartridge will feed through the same magazine.
This magazine is designed for the newer P229 and P229 E2 with the wider tapered magazine well. If you have an older P229 with flat-sided narrow magazines, confirm compatibility with Mec-Gar before ordering, as it may not fit properly in pre-2000s models.
Yes, new Mec-Gar magazines typically ship with stiff springs that can make full capacity loading difficult at first. This is normal and the spring loosens up after a few loadings and some range time. Running a couple of boxes through it will get the tension to a comfortable level.
The extended magazine is only 5/8 inch longer than flush-fit 12-round mags, so the size difference is minimal for the two extra rounds you gain. This makes it practical for both range work and concealed carry situations.
The anti-friction coating reduces loading friction when seating rounds, speeds up reloads, and protects the steel from corrosion. It's especially useful if you're running high round counts or storing magazines for extended periods without regular use.
| UPC | 765595520103 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | MGP2294014AFC |
| Brand Fit | Sig Sauer |
| Caliber/Gauge | .40 S&W |
| Capacity | 14 |
| Color | Black |
| Length | 9.2500 |
| Model | |
| Model Fit | P229 |
| Product Type | Magazine |
| Shipping Weight | 0.26 |
| 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 |
| Quantity | 1 |
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