This is the factory HK 416 .22LR 30-round magazine.

This also fits similar rifle clones, such as the Walther HAMMERLI TAC R1 rifle.

Here is some more information about the HK 416 chambered in 22 LR.

Get the look and feel of the legendary HK416 used by the world’s most elite fighting forces in a semi-automatic .22 LR rifle. HK partnered with Umarex of Germany to bring you the best, most realistic HK branded rimfire rifles available. Whether you use it as sub-caliber trainer, for hunting or competition, make sure you get the only HK416 .22 LR rifle authorized by HK.

HK416 .22 LR RIFLE FEATURES

• Aluminum receivers

• RIS–Rail Interface System M-LOK® / Mil STD. 1913

• Retractable stock

• Pistol Grip with storage compartment

• Adjustable flip up sights

• 90° manual safety

• Functional dust cover

• Last round bolt hold open

• Threaded muzzle 1/2 x 28