Thugs like these three need to be dealt with using a boomstick.
Better: Folding-stock Saiga-12 with a 12-round box mag, with another mag taped to it, U.S. aftermarket Krinkov-type forestock with a pair of AK-type accessory rails and a bipod. Three-slot compensator on the muzzle and an M-16-type post sight with low-intensity tritium insert. Tactical sling.