Ruger American Ranch/AR-556 MPR 350 Legend Rifle Magazine - 5 Rounds - This 5-round single feed magazine fits the Ruger American Ranch Rifle and AR-556 MPR platforms chambered in 350 Legend. The 410 stainless steel body provides strength and durability while the Post & Hole adds strength, durability, and robotically-welded precision. The mags LIPLOCK technology keeps rounds secured and aligned. The Advanced Geometry Follower remains level for consistent feeding while the EVERFLEX anti-fatigue spring technology ensures long life and reliability. The magazine is finished in a T-360 total coating technology for enhanced performance & cleaning. This DURAMAG magazine is made in the USA by C Products Defense. 410 Stainless Steel Body Made In The USA