UMT Mk4

I've recently completed a Mk4 version of my RepRap'ed Milestag lasertag gun. This version has a a serially driven 4 x 7 segment LED display to indicate health/ammo which I got from RoboSavvy. This is driven from my homemade Milestag UMT PCBs. These have turned out really well. The only issue that I had was the corrupted display I mentioned previously. Here is a Mk4 complete with DIY acrylic dome sensors:

This has my new style muzzle flash suppressor attached. This differs from previous models in that it has side slots to allow light to show through: