size of gas block screw ???

[nottelybill]

If I asked this before I apologize before hand. I need to know screw size of the gas block screw on my Ruder 44 carbine. I discovered when I went to reset adj that someone had cross threaded mine in the pass. I think TPI is 40.

[Wasper]

I'd call Ruger first or contact GPC's employee managed forums and ask "RJ" for the info. Here is a direct link:

http://www.gunpartscorp.com/forum/default.aspx?g=topics&f=7

I believe the part you need is here:

http://www.gunpartscorp.com/catalog/Detail.aspx?pid=225760&catid=11685