The Walther Arms Hammerli Tac R1 magazine is a standard factory replacement magazine. This magazine is designed to be compatible with a few of the Walther Arms models chambered in .22 Long Rifle and containing 10 rounds of ammunition. The magazine is made from high quality polymer and features a black finish. The most important aspect of this magazine is the fact that it is made by Walther Arms so you can rest assured that the magazine will meet and exceed the specifications and tolerances set forth by the factory engineers. You can be all but certain that this magazine will fit perfectly and function flawlessly the same as with the magazine(s) that shipped with your firearm. Walther Arms Hammerli Tac R1 Magazine Specifications and Features: Walther Arms 576610 Factory Magazine .22 Long Rifle 10 Rounds Polymer Magazine High Quality Follower High Quality Spring Matte Black Finish Fits: Walther Arms Hammerli Tac R1 models and similar pattern clones (Walther made HK416, G36, and Colt M4 .22 rimfire models)