Does anyone know if Remington 1911 R1 mags will fit the Ruger SR1911 and vice versa?
It may be the base pad design. I just checked my factory R1 mags (black and stainless) and both inserted correctly into an SR1911 but they do not look like they are fully seated. Did not check feed function but slide lock-back worked fine. The base pads of the 2 mags (R1 vs SR1911) are definitely different.Thats what I thought ... my Ruger 1911 mag will fit in a friends Remington 1911 but his mag does not fit into mine ...