This is the Walther Hammerli TAC R1 .22LR 20-round magazine.

If you’ve been searching for genuine Walther Hammerli TAC R1 magazines, look no further! 

This magazine is constructed from a lightweight yet durable polymer and features a reinforced polymer follower, to deliver superior performance. You’ll also find side-facing load-assist tabs that make loading quick and easy. 

The track that the load-assist tabs reside in double as a witness window, so you’ll never lose track of your remaining rounds again. At this price, you might as well stock up!

These are likely to sell quickly, so grab a few today!