Check the listing for details. Bullet Key Chain Pin Style, Military, Police, Hunting and Shooting. Color: Bronze, Condition: New with tags. Listed at 6.50 USD. Bullet key chains using deactivated rounds of the caliber of your choice. As with other items in this shop, we can make these from your own bullet if you prefer (must send a live round to be able to make these or a deactivated one with the bullet still with it). This is our other style. With this style, there is a heavy-duty pin in the casing with a head that cannot be pulled through. The only way to get the pin out is to remove the bullet or cut open the casing. These are much more rugged than many of our competitors designs that involve hot gluing an eye hook into the primer pocket. FREE SHIPPING on orders of 4+ 50 BMG is MASSIVE. Look at the picture of it on the hand for comparison.4.6x30 and 5.7x28 are quite smallIf I don't have the caliber you want, message me and it is likely that I can get you it. All rounds have been modified so they cannot be used for their original purpose again. All keychains are handcrafted at 2nd Shot Round by us. Look us up to find our other products!