AR bolt release question?

[Bshurilla]

I finally had time to assemble an 80% tactical machine lower that was completed at the machine shop. When I went to install the plunger and spring for the bolt release I found the hole was to shallow to allow the spring and plunger to fully seat. Nothing blocking the hole. It's just to shallow. So I had a few choices, grind down the plunger and cut the spring, drill the hole deeper etc. I was hesitant to do either so I just installed the spring with no plunger. It seems to be working just fine.
So I guess the question is how important is the plunger? Should I be worried about some type of failure. The gun is functioning just fine. I am willing to leave it as is, unless there is a safety issue. Any advise would be welcome. Thanks.

[Enfield47]

Take it back and have it fixed to meet specs. If you paid for the work to be done, it should be done correctly.

[rabagley]

If you have the right drill, drill it to spec.

[Jeymz]

I don't know of anyone running their bolt catch like that so who knows what the long term issues would be. I would just get it done right and not have to worry about it. Good luck.

[SouperMan]

The plunger is there so that the spring doesn't ever catch on the release mechanism. It provides a smooth interface between the spring and the catch.

I would either get the manufacturer to drill out the hole properly again as it sounds like a warranty issue, unless you have some steady hands and a drill.

[Bshurilla]

Looks like I'm gonna go with steady hand and a drill. Does anyone have the correct depth of this hole? I really can't read blueprints very well. The hole is recessed into the channel for the actual bolt catch lever. I'm looking for the depth from the face of the lower reciever. So the depth of the hole + the depth of the channel. Did that make sense? Just gonna put tape on the drill bit and drill till the tape is even with the face of the lower.