ProMag HECA7 20rd 45 ACP Fits HK USC Black Polymer

The ProMag H&K USC .45 ACP Carbine 20-Round Polymer Magazine is an aftermarket magazine designed for the Heckler & Koch USC carbine chambered in .45 ACP. Constructed from a proprietary DuPont Zytel-based polymer, it offers increased capacity over factory 10-round magazines at a lower cost. This magazine provides reliable feeding for range use and is backed by ProMag's lifetime guarantee against manufacturer defects.