View Full Version : How do you change a gas block?
August 14, 2000, 15:40
Any tips on how to do this? http://www.fnfal.com/forums/smile.gif
August 14, 2000, 16:58
if you are going to reinstall on same barrel, make an index mark for alignment. Drive out cross pin. Take a piece of angle iron (assuming you don't have a press) and put it between the gas tube and barrel. Pound it off. Do not hit the gas block anywhere else. Reinstall the opposite way. If putting on a different barrel, the holes may not align as the crossopin was drilled after assembly. A poorly fitting one can be soldered in place. Gas posrts can be drilled with the block in place. If putting on a different barrel, drop a pin gauge - maybe a .095" - through the block into the barrel gas port to insure alignment.
T. Mark "Gunplumber" Graham
Arizona Response Systems
5501 North 7th Avenue, Phoenix, AZ 85013
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