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When your Glock 23 or G27 needs a reliable spare for range days, training classes, or just filling out your loadout, the KCI USA KCIMZ011 Gen2 gets the job done at a price that makes it easy to buy a few at once. This is a 13-round .40 S&W magazine built to Glock Gen2-pattern dimensions, meaning it fits flush and functions the same way you'd expect from a factory-spec magazine.
The construction here is worth understanding. KCI builds these around a hardened steel insert that runs the full length of the magazine body, then encases it in impact-resistant polymer. That steel lining keeps the body from deforming under regular use, and the polymer shell protects it from dings and drops. The anti-tilt polymer follower keeps each round properly aligned as it feeds up into the chamber, and the stainless steel spring provides consistent tension from the first round to the last. Rear-facing numbered witness holes let you do a quick round count at a glance without guessing.
KCI has been producing Glock-pattern magazines since the mid-1980s and has developed a clear following among people who want to build up their magazine count without paying OEM prices for every single one. The Gen2 versions in particular have earned a noticeably better reputation than earlier production runs. Most people put these to work as dedicated range and training magazines, cycling through drills and reload practice where you want mags that can take some abuse. The removable floor plate makes field stripping and cleaning straightforward.
Fit note: this magazine is compatible with Glock 23 and Glock 27 pistols chambered in .40 S&W. G27 owners should be aware that the mag will protrude slightly from the grip on that subcompact frame, which pairs well with an X-Grip adapter sleeve if a full grip profile is preferred.
This magazine is designed for Glock Gen2-pattern pistols chambered in .40 S&W, specifically the Glock 23 and Glock 27. It will seat and lock flush in the G23, and will also function in the G27, though it will extend below the grip on that subcompact frame. If you want a full grip profile in the G27, pairing it with an X-Grip adapter sleeve is a popular solution.
The KCI Gen2 magazines are a solid step up from the original KCI production runs and have earned a good reputation as range and training magazines. The hardened steel-lined polymer body and anti-tilt follower closely mirror the factory Glock design, and many people run them for drills and classes without issues. Most owners choose OEM Glock mags for carry duty and keep the KCI mags as dedicated range spares, which is a practical approach that gives you more magazines to work with overall.
Yes, the magazine features a removable floor plate, which makes it straightforward to disassemble for cleaning and inspection. This is standard for Glock-pattern magazines and lets you swap in aftermarket base plates if you prefer a different profile or want to add a grip extension.
The KCIMZ011 has rear-facing numbered witness holes along the back of the magazine body, so you can check your round count at a glance while the magazine is seated in the pistol. It is the same feature you see on factory Glock magazines and makes quick round checks during range sessions easy.
KCI USA backs their Glock-pattern magazines with a lifetime warranty. That kind of coverage on a budget-priced magazine is a real plus, especially if you plan on buying several for regular training use. It reflects that KCI stands behind the Gen2 design as a functional, long-term product.
Most experienced Glock owners treat KCI magazines as dedicated range and training mags rather than carry mags, and that is the practical consensus across the shooting community. For high-volume training, drills, and building up your spare magazine count, they are a great fit. For a primary carry magazine where reliability has no margin for error, sticking with factory Glock magazines is the standard recommendation.
| UPC | 851586008221 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | KCI-MZ011 |
| Caliber/Gauge | .40 S&W |
| Capacity | 13 |
| Color | Black |
| Length | 8.6500 |
| Model | |
| Product Type | Magazine |
| Shipping Weight | 0.16 |
| 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 |
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