805moparkid
Slant and AFX Guy
Not sure but here is a link to a blog that guy must have tested one out. They are made by Rock River Arms.
http://www.gunsamerica.com/blog/rock-river-arms-polymer-1911/
Try to google as well Polymer 1911s there might be others making them. I don't know if they are making them in officers size. I think when you get to that size it causes a lot of them to have problems and there are a few out on the market that have a good track record. The Rock Island being oen of them.
i wonder why they would have issues... my colt Mark IV series 80 is amazing... just would rather keep it mint and not carry it ya know!