If you were creeped out by the compressed air gun used by the villain in No Country for Old Men, you might want to skip this post. There’s a new patent out for a deadly compressed gas knife ...

The pistols are imported and distributed by the Birmingham-based company Brocock, which makes the air cartridge system that powers the air gun pellets. Brocock said in a statement: "Both the police ...

They fire small pellets using a compressed air charge contained in each cartridge. But criminals have been fitting steel sleeves inside the chamber, enabling .22 calibre bullets to be fired.