5.7x28mm

FN® 5.7X28mm AR style carbine (55) Rd - Black Polymer Drum

55-round drum magazine Fits the FN® 5.7X28MM AR style carbine ( does not fit FN® Five-seveN® USG 5.7x28mm pistol ) Magazine body constructed of a proprietary DuPont® Zytel™ based polymer Blue steel upper...