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Thirty rounds of 9mm on tap and a body you can see straight through — that's the short version of what the ETS Group SMK-SW9-MP-30 brings to your M&P setup. ETS is a Knoxville, Tennessee-based company that has built a solid reputation making polymer magazines for popular platforms, and this extended mag for the Smith & Wesson M&P 9mm is a well-executed piece of work.
The carbon smoke polymer body is translucent, so you can see exactly how many rounds are loaded and what kind of ammo is in there without pulling the mag. That's a genuinely useful feature at the range, in competition, or any time you want a quick visual check. The polymer itself is impact-resistant and handles heat, cold, UV exposure, and chemical contact without cracking or getting brittle over time — a real concern with cheaper polymer mags that see hard use.
Inside, a stainless steel spring and an anti-tilt polymer follower work together to keep feeding smooth and consistent from the first round to the last. The feed lips and body are also built to be creep-resistant, meaning the geometry stays tight even when the mag is stored fully loaded for extended periods. That matters more than people realize — a magazine that has been sitting stuffed in a range bag for months shouldn't be deforming at the feed lips.
The baseplate is ergonomically designed for a solid grip during mag changes and pops off without tools for easy cleaning. It's also interchangeable with other ETS 9mm double-stack baseplates, which is a nice touch if you want to mix and match within the ETS lineup.
One important fit note: this magazine is designed for the full-size and standard M&P 9mm double-stack pistols, including the M&P 2.0. It is not compatible with the single-stack M&P Shield. Fits the S&W M&P and M&P 2.0 series and ships as a single magazine.
Yes, this magazine is compatible with both the original M&P 9mm and the M&P M2.0 double-stack pistols. It is not compatible with the single-stack M&P Shield. If you are unsure whether your M&P is a double-stack or single-stack model, check the grip width — the double-stack versions have a noticeably wider grip.
ETS specifically designed the feed lips and body to be creep-resistant, so the geometry should hold up during long-term storage even when kept fully loaded. This is one area where ETS puts real thought into their design, since cheaper polymer mags can develop spread feed lips over time and start causing feed issues.
Yes — carbon smoke is a dark translucent finish, similar to tinted glass. You can clearly see the rounds inside and get a quick visual count or confirm what type of ammo is loaded. It is not completely clear like water, but visibility is solid and much more useful than relying on small witness holes.
No, the baseplate is designed to pop off without any tools, which makes field cleaning straightforward. The baseplates are also interchangeable across the ETS line of 9mm double-stack magazines, so if you run other ETS mags you can swap them around.
This is a great pick for range days, high-volume training, and competition shooting where you want more rounds between reloads and the ability to visually confirm what is loaded. At 30 rounds, it will extend below the grip on most M&P pistols, so it is not a practical everyday carry option — but as a range or comp mag it delivers solid capacity at an affordable price point.
Yes, ETS manufactures their magazines in the United States and all ETS mags are marked as such. The SMK-SW9-MP-30 is also backed by ETS's lifetime warranty, which covers defects and functional issues — a good sign of confidence from the manufacturer in their product.
| UPC | 850016478580 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | SMK-SW9-MP-30 |
| Caliber/Gauge | 9mm |
| Capacity | 30 |
| Color | Carbon Smoke |
| Length | 8.2000 |
| Model | |
| Product Type | Magazine |
| Quantity | 1 |
| 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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