D3 Semi-Automatic Handgun

  
   The D3, unloaded, no mag            The magazine, rounds, rbs     The D3, fully loaded with mag      Leaf sight + Tactical Rails
                                                                and magazine rod

 
           Top of the gun

This is the second semi-automatic gun I have built, and because this gun is larger than a pistol, but smaller than a rifle, I have called it a 'handgun'. The gun has a 30+ foot (depending on rbs used), and has good power and accuracy. It has a 6-round magazine, but the capacity for rubberbands in the gun is more than that. The full reload time (putting rbs on trigger, adding on the top, putting on and locking the magazine, putting rounds in the mag, and putting the mag rod and rbs in the magazine) takes about 1 minute and 40 seconds (my record), which, for semi-automatics is very quick (some can take as long as 5-7 minutes). The D3 has many new features which were not included in the D2, such as:

-It fires a (2x3)F round, which is larger than the (2x2)F round fired in the D2 (meaning it has more stopping power)
-It is a smaller gun than the D2, in height and length
-More comfortable handle
-More durable gun design (meaning more rubberbands than 6 can be added in the gun)
-It features a leaf firing sight (like the M16's sight), as well as a tactical rails
-The magazine is easier to put into the gun and remove
-The magazine can lock inside the gun, using a lever
-The gun looks better than the D2 (I think it kind off looks like the Thompson Submachine Gun, but thats just me)
-Improved reliability when firing (no jamming-where the round gets stuck in the gun- and greatly reduced chance of double-fire- when 2 rounds or fired off at almost the same time)
-Simpler design, meaning it is easier to build
-Shorter reload time than the D2
-The firing system has also been simplified, with only 2 gears on the side, opposed to 4 (in the D2)

D3 Semi-Automatic Handgun



After uploading the video and the instructable, I will start work on the D3.1 . In this mod, I will fix some issues with the top of the gun, the area around the magazine, the magazine lock will be improved, some kind of safety will be added to prevent you from accidentally pulling the trigger, and a larger round capacity will be added to the gun (maybe 7 or 8 round capacity)

Here is the instructable!