Zastava Arms USA AK-47 7.62x39mm 30 Round Polymer Rifle Magazine Black 1 Pack Polymer. These magazines are used by Serbian military special forces and passed rigorous tests. They are tested at high and low temperature ranges and must exhibit consistent strength resistance to shatter and lubricity from -40 C/F to +60 C/140 F. Unlike most other polymer mags the Serbian ones have to pass a loaded military drop test in a rifle from shoulder height onto concrete. Fits all AKs using 7.62x39 double stack magazines. Specifications for Zastava Arms USA AK-47 7.62x39mm 30 Round Polymer Rifle Magazine: Manufacturer: Zastava Arms USA Color: Black Finish: Matte Fabric/Material: Steel Magazine Capacity: 30 Round Caliber: 7.62x39mm Gun Make: Zastava Gun Model: Zastava M77 Gun Type: Rifle Quantity: 1 Condition: New Zastava Arms USA ZPAPM70 7.62x39 30 Round Polymer Rifle Magazine: Polymer frame with steel reinforced rear and front locking lugs. Last round BHO (bolt hold open) steel follower. Military grade. Fits all AKs using 7.62 39 double stack magazines. Package Contents: Zastava Arms USA AK-47 7.62x39mm 30 Round Polymer Rifle Magazine What firearm models does the manufacturer say Zastava Arms USA AK-47 7.62x39mm 30 Round Polymer Rifle Magazine is compatible with? The manufacturer says that Zastava Arms USA AK-47 7.62x39mm 30 Round Polymer Rifle Magazine is compatible with Zastava M77Zastava Arms USA ZAPMAG1-30RD: AK-47 7.62x39mm 30 Round Polymer Rifle Magazine Black 1 Pack Polymer