The Canik shipped with two 18-rd magazines, and I purchased a third at Indy Arms Co.
While both the mags that came with the gun and the one sold separately had identical markings indicating that they were made by Mec-Gar for Canik, the magazines themselves had subtle differences.
The magazine on the left is the one bought solo. Notice it has a polished blue finish, as opposed to the semigloss matte finish on the one that came with the gun.
The one on the left has numbered witness holes, unlike the ones that shipped with the pistol.
Lastly, the one bought individually has the company crest on the floorplate, while the one on the right does not.
Dimensionally the two types of mags seem to be identical, and the followers appear to be the same.
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