Tactical 22s: A New Class of Rifles
Mimicking guns such as the AR-15, HK MP5 and SIG 550, tactical look-alikes in .22 LR are more common than ever. From the article "Tactical .22s"
Umarex’s 20-round magazines have a polymer housing and a wide, grooved button on each side to assist loading. Available in 10-, 20- and 30-round versions, they fit both the HK 416D and the Colt Tactical .22.