Don't Worry, there is no gun powder in the necklaces. :-)
.223 also known as 5.56 Rifle bullet converted into an awesome necklace. These are brass that were shot once out of an AR-15 (M-4 or M-16) refurbished and recycled into necklaces. The brass was polished with a tumbler, deprimed and reshaped back to specs.
The actual bullet that was placed into the brass is a 55 grain ballistic green tip. These tips are one of the most devastating rounds that causes optimal damage to the target.
The necklace is made from military grade 550 cord, also known as para-cord. The name 550 cord comes from its payload capabilities which means it can withstand 550 lbs of pressure. The cord is nylon with 6 smaller nylon strings within the black cord. I gutted the cord by taking out the six small strings to give it more flexibility and comfort. It is black in color with no clasps or knots. The length is about 1.5 feet which you can adjust on your own by tying a knot to the back.