Need nut size for pistol grip

[Greg G]

Can someone tell me the size of the nut holding the pistol grip on? I have tried several different sockets to no avail.

 

[Greg G]

Looking at it with a flashlight it looks like some kind of allen head screw or torx.
Sorry for my ignorance.

 

[ColbyBruce]

Try a 3/16” Allen head

 

[Greg G]

OK thanks.

 

[bamashooter]

Can someone tell me the size of the nut holding the pistol grip on? I have tried several different sockets to no avail.

Is it not a bolt vs a stud / nut? Never had the need to check. A standard AR PG bolt is 1/4-28x1, with your head of choice. I prefer allen.

 

[Greg G]

Is it not a bolt vs a stud / nut?

Yes it appears to be a bolt head instead of a nut. I had to order a 3/16 allen wrench as I don't have one long enough to get to the bolt head.

 

[Kp321]

Use caution when working with the grip screw. It is very easy to cross thread and/or strip the threads. (Don’t ask me how I know). HeliCoil is the best, permanent fix.

 

[Greg G]

Thanks for the tip. Up to now, my main concern has been getting the bolt out.

 

[Greg G]

Got my long 3/16" allen wrench and removed the grip that came on it and put on a Hogue Monogrip with no issue.
Much better feel than the stock grip. Thanks guys.