Terry Russell from Spear Mags Ltd contacted me with an offer for club members.
Spear Mags manufactures magazines for SL8’s and also 7/10/30 round mags AR-15’s.
Their 30 round AR-15 magazines are $75 each, but if club members want to buy as a group they can supply at a discounted volume rate.
All components of these magazines are manufactured in NZ to magpul tolerances and should function well in milspec AR-15’s.
They offer a 30 day money back guarantee on their mags so you can purchase with confidence.