This is a set of twelve 6mm-scale turrets for sci-fi infantry fighting vehicles or light tanks. These variants have an autocannon and four-pack antitank missile launcher.
A quick note: I had to thicken the gun barrels a bit because of printability issues, so they aren't quite as slim as shown in the color pictures.
2.692 w x
0.43 d x
1.06 w x
0.169 d x