07-31-2019, 05:10 AM
As if getting the pins IN wasn't hard enough, ever try to get one back out? I've never been able to do it without at least ruining the pin, if it can get it out at all.
My solution, tap the pin hole in the gas block to 4-40 on both sides. Put a short 4-40 grub screws in. If you grind a cone shape on the bottom of the grub screws they will lock into the hole in the gas tube and this usually lets the screws go in far enough to sit flush with the outside of the gas block. Best part is you can take the thing back apart someday if you need to.
My solution, tap the pin hole in the gas block to 4-40 on both sides. Put a short 4-40 grub screws in. If you grind a cone shape on the bottom of the grub screws they will lock into the hole in the gas tube and this usually lets the screws go in far enough to sit flush with the outside of the gas block. Best part is you can take the thing back apart someday if you need to.

