The ProMag GLK-18 is a high-quality aftermarket magazine designed specifically for the Glock 36 pistol in .45 ACP caliber. Featuring durable polymer construction and reliable 10-round capacity.ProMag GLK-18 Magazine for Glock 36.45 ACP caliber compatibility10-round magazine capacityDurable polymer constructionBlack finishDrop-free design for reliable functionIdeal for range training backup magazines or extended shooting sessions. ProMag magazines are known for their reliability and quality construction making this an excellent choice for Glock 36 owners seeking additional magazine capacity.