GP-30 M203 Hybrid by MadMansGun

Last crawled date: 3 years, 1 month ago

my (so far failed attempt) to make a hybrid mix of (airsoft) gp-30 & m203 grenade launchers
list of known & possable problems:
trigger frame attachment to tube rail may be too weak and could possably break.
tube may or may not be the wrong calibre, i don't own any shells to know for sure.
unknown if tolerance of trigger parts is right
hammer may be too weak to actavate grenades due to the short travel length of spring and where it's located (but it may be possable to attach a rubber band to the top of the hammer to assist it)
the shell extactor is located on the same side as the tube lock, this is a possable problem because that also means the shell is only getting held in place on one side, so the underside of the tube may flex apart apon fireing (if it even fires that is), but however if it was on the bottom then there would be the possablaty of it not letting the shells fall out due to the shorter than normall opening length (front of shell not clearing the back edge of the tube due to the extactor holding up the back end of the shell).
other tolerancees are most likely off, and it's unkonwn if hight to handguard is right.