ProMag Polymer Rifle Magazine AK-74 5.45X39mm 30-Round Black 30RD. The follower is injection molded and the magazine spring formed from heat treated chrome silicon wire. Specifications for ProMag Polymer AK-74 5.45X39mm 30-Round Rifle Magazine: Manufacturer: ProMag Magazine Capacity: 30 Round Caliber: 5.45x39mm Gun Model: AK-74 Package Contents: ProMag Polymer AK-74 5.45X39mm 30-Round Rifle Magazine What firearm models does the manufacturer say ProMag Polymer AK-74 5.45X39mm 30-Round Rifle Magazine is compatible with? The manufacturer suggests that ProMag Polymer AK-74 5.45X39mm 30-Round Rifle Magazine is compatible with AK-74ProMag AK-A6-30RD: Polymer Rifle Magazine AK-74 5.45X39mm 30-Round Black