Quoted:


Morning,



Yesterday I was removing the front hand grips on my FAL when I noticed there was a little side to side wiggle with the gas block. Everything looked to be in place. What would cause this? How do I tighten it up?



Thanks

Quoted:


I have only seen this once. It was a frankenfal with an IMBEL barrel and a G1 gas block. I do NOT know the "proper" way to repair this, but I will tell you how I did it. I removed the gas block cross pin and gas block. (from hence referred to as GB) I turned the barrel over so that the bottom side of the GB journal was up. With the GB journal supported on a block of aluminum ( wood will work just fine), I used a transfer punch(any hardened steel punch with a fine point will do) to put small dimples in the journal.Use a small hammer and tap lightly. I made 5 rows of 5 dimples each along the length of the journal. I did this on the bottom half only. If you were to look at the dimples under a magnifying glass, they would look like small meteor craters. The center being pushed in, but the rim rising above the surface of the journal. I then pressed the GB back into place. Since I only dimpled the bottom, the inside of the GB was pulled down onto the gas port, thus making a proper seal.
I replaced the cross pin with a roll pin.

You may be able to simply replace your current cross pin with a roll pin without doing the dimple bit. It isn't a safety issue, so if you replace the cross pin with a roll pin and the GB comes loose again, no harm has been done.