Superior Arms AR Trigger Creep Adj Screw

[Henry Bowman]

I am doing a couple of AR15 builds from Superior Arms stripped lowers. They have an extra tapped hole next to where the pistol grip attachment screw is inserted that is for a set screw that can be adjusted to take up the trigger creep.

The lowers I bought came w/o the set screws installed. I met the Pres. of Superior at SHOT who said he would send them to me if I sent him a reminder. Two reminders later -- no response.

I'm sure the postage is greater than the cost of the screws and wouldn't mind picking them up myself at the local hardware store -- if I knew the size and thread. They appear to be 1/4 " dia. and a fairly fine thread, but I can't get a thread gauge into the hole to check it and don't have a male thread to check.

Does anyone know the size of these set screws?

Thanks.

 

[rcmodel]

Couldn't you just take a lower to the hardware store and find the set-screws that fit?

Nobody would even know it was a gun part unless you told them.

rcmodel

 

[Henry Bowman]

I tried that, but the threads are so deep in the hole i needed an allen wrench to try it. I can go back again, but thought I'd ask here first.

 

[Henry Bowman]

I have an answer. Saw the Superior folks at NRA show. They sent me 2 screws. For future reference, the size is 1/4 X 28 X 1/2"