re:
Drop in parts...Drop in parts...
Sorry. Can't locate the database on that term. Must be non-existent.
Wilson Bulletproof extractors are good...but they usually require some fitting and/or modification to work to optimum.
The same brand slidestop is second to none, and made of machined steel...but they're pricey and usually require a little tweak here and there.
Colt sear springs are pretty much good to go...usually.
Colt plunger assemblies are good to go. They even have the correct dogleg kink in the springs.
MGW Drop-in barrel bushings are pretty good...but usually require a little fitting to the slide bore.
Brown hardcore firing pins usually drop in. Same with all springs, unless your pistol is shorter than the standard 5-inch...and then recoil springs may require trimming to prevent coil bind. Some recoil systems are proprietary.
Recoil spring plugs usually drop in and work. Not all recoil spring guide rods do, unless you stay away from the full-length variety...and sometimes even the stub type require attention.
Pins usually work.
Mainspring housings drop in most of the time...but not always. Grip safeties and thumb safeties usually require some attention. Aftermarket triggers are oversized and require fitting.
Sears, hammers, and disconnect almost always require at least some fitting...most require a lot, if you don't want any unpleasant surprises of the full auto variety.
Barrels marketed as drop-in usually do...but they may not last long...depending on upper lug engagement...or provide sterling accuracy.
Some may go on forever and some may self-destruct within a few hundred rounds. Seen it go both ways.
See the trend here? You can hope that a given part will drop in and work...but it's best not to count on it.
Luck to ya!
