PMC .223 Rem works in 5.56mm military grade ammo. Reloadable brass cases, so when your done shooting them, you could reload them. 20 round boxes or you can buy 500 rounds BULK for $249, while it last IN STOCK if the ad is up. No much to sell, I SHIP TO ANY STATE WHERE LEGAL. 18 year of age or older to purchase for rifles use / if used in a pistol you must be 21 years old or older to purchase. Credit cards accepted with a 2.99% fee. Sales tax on all sales, stock and prices subject to change without notice. NOT FOR SALE WHERE PROHIBITED BY LAW. 7 DAY A WEEK PHONE INFORMATION HOTLINE 52O 790 5017.