Warne Mfg 5001: Warne Rifle Magazine Extensions are available in +5 capacity models for P-Mag 30 round Magazines. These extensions feature an ergonomic shape that allows for better insertion, and finger grooves, allowing the magazine to be stripped from the handgun if needed. Fits P-Mag 5.56-223 30 round magazines. Magazine NOT included. Not available for shipment to CA, CO, CT, D.C., HI, MD, MA, NJ, NY, WA, VT.