MagHolder Horizontal Magazine Holder is designed for Glock 21, 30, and 41 pistols in .45 calibers. This left horizontal magazine holder is manufactured by MagHolder and comes in a sleek black color. It is perfect for shooting sports and hunting activities, offering a secure and convenient way to carry extra magazines for your firearm. With a lifetime manufacturer warranty, you can trust in the quality and durability of this product for all your shooting needs.