Gotta love the bodygurad frames. SA is too handy. Lock or no lock isn't really that big of a deal aside from having to put a Lock Delete parts kit in the lock models. I didn't look for a no lock since I was set on a 438, dig the black frames. Found mine as a N.I.B. old stock from an FFL in ohio on the interweb. Not sure if the 438 was ever a no lock model. Threw a Titanium set in mine and never looked back.