Gunsvalley.com sells New factory 5.7 x 28mm ammo at very great prices . Gunsvalley.com buys their ammunition from well known suppliers such as Federal and winchester. Fn 5.7 x 28 these ammo is old at a discount price of $325 per 500 rounds box . Our FN 5.7 ammo for sale has very great characteristics which will also be published below . It has a Polymer Tip and delivers dangerous, precise, long-range execution thanks to its 40 grain, fast-growing, polymer-tipped so shot and competent propellent burden. Because of its: