so, if I were to go the route of cutting off the A2 sight and re-using that gas block.....i'd remove the pins, take off the flash suppressor, slide the new rail on and install.......but...... then how the fuck would one put the gas block and pins back in? It's a 10.5" SBR barrel, and I was looking at 9.2" rails so it would cover the cut-off gas block. im confused. don't want to drop this money until I am sure this shit is possible EXAMPLE: I want this covered, and 9.2" rail will do that. but how the fuck would I get the block back on....?