Factory Ruger magazine with Ruger logo, feeds as reliably as the standard BX‑1 10‑round rotary mags on paper.

Holds 25 rounds of .22 LR, weighs about 4.4 oz (125 g), length is 6.25 in (15.9 cm) .

Made of polymer body, steel feed lips and spring, and a poly-acetal ant-tilt follower

Some reports praise it for reliable feeding, durability, and ease of loading, even praising the transparent models for round tracking.