I know I have an original 1921 actuator. I bought it as a kit containing the dual buffer tubes and original orange/red buffer disks. As I mentioned in a previous post, I sold the latter because I use a PK 21 buffer tube and spring. I may or may not have had PK reblue the actuator, but I cannot find any paper work to prove this. I just don't recall. However, the wear marks on it match those from the original picture I took of it before I installed it. So I don't think it was.
What subtle ways can be employed to show it is, in fact, a '21 and not a cleverly shaved '28? All I see on it is what looks like an "L" or a "7" stamped on one side. I didn't think many Colt parts had markings.
Does a rebluing effect the value?
What the going value on a lone '21 actuator?
I'm having a '28 shaved and feel like this might best be owned by a Colt. I bought this before I think anyone was remilling '28's but I could be wrong about that...