A blank adaptor allows a semi auto rifle or handgun to function like it had live ammo by restricting the gasses enough to work the action.
Thanks for that, it clears up quite a bit.
I was given the 3rd degree when entering the hall of justice in Lincoln a year ago for jury duty while having an empty 5.56 cartridge in my coat pocket, of course I did have plenty of other items as well, but it is a work coat. I left the pistol and EDC knife in the van. Pretty funny actually, lol.
I once got stopped trying to enter, because my keychain had a little novelty item on it that was shaped like a wrench. I guess they were afraid someone would take this weak toy and somehow undo the bars in their cell if they got it away from me, LOL. I told them to keep it, it just wasn't worth the hassle to head back to my vehicle over that.