Push Through Endcap for Tube Magazine

edit: See also this later version, which is sized for 1/2" PVC and has sloped flaps for better dart stoppage .http://www.thingiverse.com/thing:431138

Soft, foamy projectiles with ~13mm caliber (this includes Nerf elites or streamlines) can be pushed through into this endcap easily and the last one forms a pneumatic seal that won't get blasted back out by low air pressure used in toys ( < 25 psi). This version is fitted for a 5/8" OD magazine.