Amend2(R) Mod-A AR-15 5.56x45 NATO 30 Round RBC Pattern Polymer Magazine is a magazine intended for AR-15. The listed capacity is 30 rounds. It features a rbc pattern finish. The listed construction material is polymer.Key Features30-round capacityListed caliber: 5.56x45 NATOPlatform: AR-15Color/finish: RBC PatternConstruction: PolymerManufacturer part number: 556MODABRBS30Amend2(R) offers firearm-related products and accessories. Product selection includes components for compatible firearm platforms. Check the manufacturer part number and firearm compatibility before purchase.