AR57's M4 conversion : 5.7x28 mm cartridge on an M4 equals 50+1 firepower for intense cqb duties / Rob Garrett

Publisher

Not set Type Serial component part

Place of publication

Not given

Date of publication

Not given

Subjects

Volumes

Guns and Weapons for Law Enforcement 22.6 (September 2010), 12-13

Note

The AR57 is a replacement upper reciever that allows a standard M4 to be converted to 5.7x28 mm and use a FNH USA style 50 round magazine