Amend2 Mod-C Magazine AR-15/M4/M16 5.56x45mm NATO/.223 Remington 30 Round Translucent Smoke 1 Pack 30RD. It features the tried and true 4-way anti-tilt self-lubricating follower and a heavy duty non-corrosive non-memory spring. Specifications for Amend2 Mod-C AR-15/M4/M16 5.56x45mm NATO/.223 Remington 30 Round Magazine: Manufacturer: Amend2 Color: Translucent Smoke Fabric/Material: Polymer Magazine Capacity: 30 Round Caliber: 5.56x45mm NATO .223 Remington Gun Make: AR Platform Gun Model: M16 M4 AR-15 Features of Amend2 Mod-C AR-15/M4/M16 5.56x45mm NATO/.223 Remington 30 Round Magazine Sturdy chemical and temperature resistant polymer with textured grip 4-way anti-tilt follower Heavy-duty non-memory and non-corrosive stainless steel spring Package Contents: Amend2 Mod-C AR-15/M4/M16 5.56x45mm NATO/.223 Remington 30 Round Magazine What firearm models does the manufacturer say Amend2 Mod-C AR-15/M4/M16 5.56x45mm NATO/.223 Remington 30 Round Magazine is compatible with? The manufacturer says that Amend2 Mod-C AR-15/M4/M16 5.56x45mm NATO/.223 Remington 30 Round Magazine is compatible with AR-15 M4 M16Amend2 556MODCSMK30-30RD: Mod-C Magazine AR-15/M4/M16 5.56x45mm NATO/.223 Remington 30 Round Translucent Smoke 1 Pack