This Ruger Mini-14 magazine from ProMag is durable and lightweight.The magazine body is constructed of a proprietary DuPont Zytel-based polymer and heat-treated steel with a black oxide finish.In addition its spring is formed from heat-treated chrome silicone wire and has an injection-molded follower.ProMag Ruger Mini-14 223 Remington MagazineSteel/Polymer Construction30 Round CapacityCompatible with Ruger Mini-14 RiflesWhether you're looking for a replacement mag or you just want an extra 30 rounds on standby this is a smart purchase.Order your ProMag Ruger Mini-14 magazine online today!Score big savings and fast shipping when you shop our large selection of cheap bulk .223/5.56 ammo for sale.