Not to mention causing feeding problems.
Polish, but don't change angles or dimensions.
And, if the gun works, it probably doesn't even need it.
Try it first - no need to tempt fate.
Unless, of course, you are experienced in doing this.
Then never mind, just ignore us.
Walt Kelly, alias Pogo, sez:
“Don't take life so serious, son, it ain't nohow permanent.”