Well it is new old stock for sure, just having a hard time deciding to shoot or not. Also as a mainly a revolver shooter, I thought I would trust this DAO better for daily carry. But man its hard to shoot a gun that old and not keep it for investment purposes. I have a 4506-1 as well and its a great gun, just too big to carry. This one can be carried OWB with 17 round magazines which would be the same as a Glock 17...decisions decisions....