I had a Lawman MkV, which essentially was the fixed-sight version of the Trooper MkV. While the MkV action, trigger, and hammer components were a distinct improvement on the previous MkIII set-up, the internal components were only surface-hardened, so any action jobs performed to improve the triggerpulls was pretty much restricted to spring switching.
The nylon component to the latch release intrinsically bugged me too; while I never had a problem with mine, I foresaw this as a limited lifespan type of componentry.
I found the Colt's trigger to be a bit odd in several aspects; first, the architecture of the trigger and the triggerguard resullted in a very, very tight clearance, to the point of where my trigger visibly rubbed against and slightly marred the innersurface of my triggerguard-and this was both before and after I had my trigger adjusted; second, while the Colt's single action triggerpull was magnificent, the DA was heavy and stagey.
While the MkV action, as seen on the Troopers, Lawmen, Boas, Peacekeepers, and King Cobras was certainly improved over its predecessors, I see it as a distant second to the Security/Service/Speed Six and GP100 actions-both intrinsically and in terms of improveability.
While the MkV guns have a reputation for strength, I think that the Rugers are all over them for durability-and are certainly easier to disassemble (and you don't have to worry about a cylinder retention screw loosening and falling out and, shall we say, an inopportune moment...).
I eventually traded my MkV Lawman across the board for a BNIB P89. I have absolutely zero regrets, and my understanding is that the Lawman is slated to go into a museum.
I will say that for what was essentially an entry-level, bare-bones law enforcement service gun it was beautifully blued and finished.
I would definitely recommend that you go with GP100 (or a Security Six), especially over a Trooper MkIII.
Best, Jon
