The lower receiver on the pnuematic GR16 was treated different, so once you remove the front pin, the receiver readjusts, and after that takes place, the front pin no longer fits without the risk of breaking your lower receiver. This is extremely common among the pnuematic GR16, but not the standard GR16. (or so I'm told.)
Besides, its time for a body upgrade anyway, plastic just doesn't do it for me, lol.
Last edited by IceTray; June 26th, 2009 at 14:10..