PMC X-TAC 5.56 NATO green tip 62 grain rounds contains the M855 penetrator bullet, which is a steel-tipped lead core design. This 5.56 bullet deforms less on impact than standard full metal jacket rounds, has increased stability and accuracy, and transfers less energy on target. This PMC 5.56 NATO ammo fires from most AR-15 rifles and is a great, relatively affordable choice for range training or hunting. 2 boxes. $20