Best way to hold A2 gas block for drilling and taper pin reaming without a fixture?

The_Shmoo

CGN Regular
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Missisauga, ON
Haven't bothered to measure to hole under the gas port yet but would a tap abd a set screw or long cap screw be enough tension on the gas block to keep it in place for the drilling, at least to get the first one in place? Not sure if I will do it on the drill press at home or take it to work and do it on the mill.
 
Another stupid question, but I should have the handguard cap in place when doing this operation, correct?

Yes on that.
However without a jog I'm not sure how you could accomplish this easily....
I would manufacture a jig out of wood.
There's nothing worse than having a front post canted off to the side.
it will also effect the gas tube being able to be inserted/make life real hard for you if it's over too far when you reassemble the rifle.
 
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