HELP! Cross threaded screw for AR15 pistol grip.

[DevsAdvocate 112]

I am trying to wrap up my build and cross-threaded the damned pistol grip screw... any suggestions on how to get past this? The PG screw won't thread at all now.

[hd2000fxdl 422]

You might want to chase the threads with a tap very lightly, but more than likely that's not going to work. The only off the top of my head idea would be if that doesnt work it to take the screw to a local gunsmith and see if they have one where the head and taper matches but the next thread size up.

[DirtyDigz 1,811]

That sucks. If the tap chasing doesn't do it then look into a helicoil.

[hd2000fxdl 422]

That sucks. If the tap chasing doesn't do it then look into a helicoil.

 

Doubt a helicoil would work in something that thin. Also while I keep helicoils on hand I really like timesert's better in most application. Not for this type of repair but a better alternative to helicoils in most applications.

 

http://www.timesert.com/

 

[Stickle 2]

if you have not placed the trigger in the lower you may be able to chase the threads from the top of the threads on some lowers. The last few lowers I have picked where drilled and taps all the way into the receiver. Just a thought of the top of my head. Sometimes people clean the threads right out with a tap by trying to chase the thead from the bottom

[Stickle 2]

That sucks. If the tap chasing doesn't do it then look into a helicoil.

 

If you're going to drill and retap the receiver for the helicoil you might as well just use the larger sized bolt and drill the grip slightly. It might not be spec but less chance of the threads backing out.

[Tactical Turtle 11]

Find a machine shop, have them drill and re tap the hole and give u a matching bolt. Widen the hole in the pistol grip and Ur ok

[Old School 611]

Adam - Get in touch and I'll get you squared away.

 

Frank

[DevsAdvocate 112]

Old school, will do.

 

Everyone, thanks for the pointers. I'll let you know how it works out.