Curved 7.62x39 AR mags for Grendel?

[mongoosesnipe]

you do not want the curve, the 10 round 7.62x39 and grendel mags are interchangeable but while the grendel is based on the 7.62x39 the case taper of the 7.62x39 which is what necessitates the curve has virtually ben eliminated eliminating the need for such drastic curve as seen in ak mags or in the 7.62mm ar franken mag things