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5/25/2010 2:42:53 PM EDT
Hey guys I have a quick question about my build, I am running a 20in YHM fluted barrel and a YHM low pro gas block that use 2 set screws.

My question is, since there is no set screw holes on the bottom of the barrel will I just be able to use this gas block? Will I just crank down Snug the set screws in place and loctite them? Or do I need to get a new gas block? If so which one?

Thanks in advance

This is the gas block
http://www.jsesurplus.com/yhmlowprofilegasblockshort.aspx
And the barrel
http://www.jsesurplus.com/yhmar15barrelcarbinelength-4.aspx
5/25/2010 4:23:33 PM EDT
[#1]
You can get your gas block in the correct place, take one screw out dimple the barrel with your drill. then put in set screw and repeat process for other one. In a perfect world this will all be done after you assemble and shoot it so you know it will cycle properly. I did mine without doing that and haven't had any problems but I'm not saying you wont.
5/25/2010 7:17:10 PM EDT
[#2]
Ok sounds ok, I'll have to get a springloaded punch and a new bit... Oh and find BDC.... Dammnit
5/26/2010 10:54:00 PM EDT
[#3]
Not a big fan of the set screws. Seen a coworkers work itself forward,scraping up the barrel. He replaced it with a clamp on. Drilling some holes sounds like the way to go if you go the set screw route.
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