It doesn't take a math degree to measure barrel length.BSA1 Just a passing thought to those of you that want to turn the owner into the police, put them out of business, bankrupt them and put them in prison...
What if you are wrong?
If they are selling illegal SBR's they NEED to be investigated.What is your attitude going to be while they undergo a unnecessary police investigation and audit by the BATF?
Because I pushed the pin on the front sight base unscrewed it and removed it.Are you SURE the muzzle device isn't pinned and/or silver soldered? It can sometimes be hard to tell.
Such as getting stopped for a broken tail light on the way to the range?I would definitely inform them. What I would do next would depend on how they responded.
My biggest concern would be for some unsuspecting person who might buy it. But on the other hand, the only way it would probably ever be checked after it was sold would be if the buyer did something to cause it to get checked.
IMO, this is a good way to live. It won't guarantee you never find yourself in trouble; but as long as you live, you can look yourself in the mirror without being ashamed of the man looking back at you.It is never the wrong thing to do the right thing.