Here welcome a sync between mecha-scifi and drama genres anime, titled Bubuki Buranki [ブブキ・ブランキ]. Studio SANZIGEN offered this as one of its original work in WINTER 2015/2016 season.
(The 2nd season end last season, FALL 2016)
The series title must be unfamiliar with you. Yep, it makes sense because it is about the term in the anime itself. Bubuki is a weapon's owned by gifted individual only. Buranki is a mix of several Bubukis. Clashes of Bubuki's users with its Bubukis' powers (as shown in the pic such as the spear and rifle) discover unsettled matter about the past and the origin of Buranki, makes the drama pops out.
【Download the theme songs here ♪♩♫♬】