Most states make it illegal to carry such weapons. The reason for this is much the same reasoning as making it illegal to carry switchblade  knives and brass knuckles & They are seen as thugs  weapons, rather than as weapons of legitimate self defense.

The legality of playing casino games like blackjack for money in your own private residence can vary depending on the laws and regulations of your jurisdiction. In many places, private and social gambling among friends and acquaintances in a non-commercial and non-profit setting is allowed and not considered illegal.

To play 777, follow the HOW TO WIN  instructions: Reveal a set of any three like-colored "SEVEN" symbols in a row to win the corresponding prize for that row. Reveal two sets of three like "SEVEN" symbols in a row to win double the prize.

If the first three cards of your hand are 7s, you'll win the Mini Prize worthR$100. If you're first three cards are red 7s, you'll win the Mid Prize worthR$1,000. Finally, if your first three cards are all 7s of diamonds, you'll win the Grand Prize and take home the entire jackpot.