Weapons included, as mentioned in the initial announcement back in mid December last year were just the rapid rifle and stun gun as shown in the third image. The long sword and Kukri knives seen in the last three images may be from Kotobukiya's M.S.G. series.
130mm tall. This month release - exact date not mentioned, but should be very soon now, 3,150 Yen (inclusive of tax).
Images are from Nintendo World BBS.