Quick view Hammerli Hammerli Tac R1 Semi Automatic Rifle .22LR The Hammerli Tac R1 22. A modern AR-type 22 semi-automatic at a fair price. Comes with a 16-inch barrel with a 3/4 length, M-Lok-style free floating forend with adjustable open sights. A picatinny... MSRP: Was: Now: £499.98