Toggle sticking open

[G.T.]

Hi to all, best guess that immeadiatly comes to mind is the receiver forks were bent or crushed during the re-barrel effort? Take the upper receiver off and make sure the toggle parts perform properly out of the frame... then reassemble and see if there is any interference between receiver and frame.. correct as needed? Maybe not all as simple as that, but that's where I'd start.... best, GT