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Mec-Gar has been quietly making some of the best pistol magazines on the planet out of Italy for decades, and this little Plus 1 kit is a perfect example of the small upgrades that make a real difference. It's a simple three-piece set that swaps into your existing CZ or Witness magazine and bumps your capacity up by a single round. On a Mec-Gar 17-round CZ magazine, that turns it into an 18-rounder while keeping a low, flush-looking profile.
Inside the pack you get a new magazine spring, a fresh polymer follower, and a replacement floor plate, all finished in black. That's the whole system that controls how your rounds stack and feed, which is why replacing all three at once matters. Trying to force an extra round in with just a base pad usually leads to feeding headaches, so Mec-Gar tuned the spring and follower together to handle the added capacity without choking reliability.
Installation is tool-free and straightforward. You unload the mag, pop the old floor plate off while controlling the spring, pull the guts, then drop in the new spring and follower and snap on the new floor plate. Ten minutes and a little care around the spring tension is all it takes. This kit is built specifically for Mec-Gar CZ and Witness magazine bodies, so it's worth double-checking that yours is a Mec-Gar mag before you start.
People who run CZ 75, SP-01, Shadow, and Tanfoglio/Witness pistols tend to swear by Mec-Gar. The magazines are made from heat-treated carbon steel with high-impact polymer followers, and they've earned a reputation for running flawlessly, often better than factory mags. If you already trust your Mec-Gar magazines, this is an easy, budget-friendly way to get a touch more out of each one.
This kit is designed for Mec-Gar CZ and Witness (Tanfoglio) magazine bodies. It's most commonly used to convert a Mec-Gar 17-round CZ magazine into an 18-round magazine. Make sure you're starting with a Mec-Gar mag rather than a factory CZ or aftermarket body, since the parts are dimensioned for the Mec-Gar tube.
It adds one round to a compatible Mec-Gar magazine. The new spring, follower, and floor plate work together to fit that extra round while keeping a clean, low-profile look. It's a modest bump, but a very useful one for range days or everyday carry.
No, installation is tool-free. You unload the magazine, carefully remove the old floor plate while controlling the spring, then swap in the new spring, follower, and floor plate. Take your time with the spring tension and the whole job usually takes under ten minutes.
Mec-Gar has a strong reputation and produces magazines in Italy for a long list of well-known firearm brands. Owners of CZ, SP-01, Shadow, and Witness pistols routinely praise Mec-Gar for reliable feeding and durable construction. This Plus 1 set is made to the same standard as their magazines.
| UPC | 765595518100 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | MGP1SETCZ |
| Brand Fit | CZ |
| Model | |
| Model Fit | Witness |
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