🎖USMC Retired Premium Member
I just got a Sig Ultra 1911. I am a magazine freak, usually wanting at least 6 - more if I shoot a lot. I found the Ed Brown Officer mags fit mine and fed perfectly. I have not yet frame taken-down, so am not sure the pin that holds the mainspring housing is the same as “usual” 1911’s. If it is, I have an Ed Brown Officer magwell that approximates the old S&A one. That I have on an old Kimber Ultra CDP, and it gives my big hands just a bit better purchase to shoot. But the Sig is a 9, so relatively easy to shoot, while the Kimber is a .45, so more of a bear.