#html-body [data-pb-style=W1STPEQ]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}The PW Arms AR57 magazine holds 50 rounds of the unique 5.7x28mm FN cartridge for use in your P90, PS90, or AR57 upper. Magazines are Translucent black in color, allowing you to see quickly how many rounds remain, and are easy to load.