BCM grip screwdriver size for installation screw.

[Cane55]

Those hex grip screws affect accuracy, don't use them if you expect to get 1 MOA. I can't believe 3 pages on grip screw.

How does the grip screw affect accuracy?

[Cane55]

Which was my rationalization as to why Colt used (and uses) a slotted screw from the very beginning.

Much more difficult to install in an automated line, so they had to use it for a reason.

As much easier as hex is to install / remove, I've used the slots if that's what it came with. Really no big deal.

What size screwdriver did you use when you installed the slotted screws? I got a 5/16”th’s by 6 inches (which is wide enough for the screw, but is a little too thin and rattles up and down). What did/do you use? Thanks.

[pag23]

I prefer slotted screws.. easy to install in my opinion and a common type of screwdriver available

[P2Vaircrewman]

How does the grip screw affect accuracy?

Sarcasm my friend.

[Cane55]

Sarcasm my friend.

lol. You got me. Well done.

[Cane55]

I prefer slotted screws.. easy to install in my opinion and a common type of screwdriver available

Can’t argue with that.

[Cane55]

FYI - I spoke to BCM and they said they use a 3/8” screw. So there’s the answer. You can use smaller ones to get the job done I suppose, but the exact screwdriver would be a slotted 3/8” (for all other milspec too).

[prepare]

5470A62D-5D0B-438B-B654-98FED0442B97.jpeg
This works well for holding the mil- spec grip screw to get it started.

[pinzgauer]

What size screwdriver did you use when you installed the slotted screws? I got a 5/16”th’s by 6 inches (which is wide enough for the screw, but is a little too thin and rattles up and down). What did/do you use? Thanks.

The large slotted screw on the common reversible four in one screwdriver. It also happens to be hollow ground.

[prepare]

Did the A2 grip screw change to the socket head style screw?