Always used wilson combat 47D 8 rounders. I have a colt 70s series government model my dad gave to me about 10 years ago. Been running 2 wilson combat mags through it since then and I haven ever had any issues, the price is worth it. Just picked up three more yesterday. I did break a follower on one of them about 3 months ago, it happened when I broke my slide lock through newbi error.