12 ga., 2 3/4 or 3 in. chamber, bullpup configuration, thick frame, 20 in. steel barrel, choke set, 5 or 10 shot mag., flip-up low profile front and rear sights, top rail for mounting optics, black finish.
12 ga., 2 3/4 or 3 in. chamber, thick frame, 20 in. steel barrel, tube choke, 5 or 10 shot mag., AR iron sights, synthetic stock, ergonomic cheek rest and grip, built-in rails, carry handle, black finish, 8 lbs.
12 or 20 ga., 3 in. chamber, self-adjusting semi-auto gas system, 18 1/2 in. chrome-lined (FX4 model only) barrel, cylinder choke, 4 shot mag., standard iron (FX3) or tactical adj. fiber optic sights (FX4), synthetic grip stock (FX3) or tactical pistol grip (FX4), manual safety, black finish, 9 lbs.