ProMag RUGA11FDE 20rd 223 Rem Fits Ruger Mini-14 FDE Polymer

The ProMag 42-round magazine is a high-capacity aftermarket magazine designed for Ruger Mini-14 rifles chambered in .223 Remington/5.56x45mm NATO. Constructed from a proprietary DuPont Zytel-based polymer with a black finish, it features an injection-molded follower and heat-treated chrome silicon wire spring for reliable feeding. Made in the USA and backed by a lifetime warranty, this magazine offers extended firepower for range training and recreational shooting, though it is restricted for sale in several states due to local magazine capacity laws.