Hilton Yam has interesting (+) article in his recent 10-8 letter; regarding the positives of the oversized external extractor in the SW E series. Here's part of it.
In regards to disassembly and maintenance, it certainly does require more tools to switch out an external extractor, but let's be realistic about what we want to do. If you're out on an extended rural patrol or on a deployment, that part of the gun can now be considered one unit, much like the lower of your M4, MP5, etc. Just like those weapon systems, don't take them apart until you're back in a controlled environment. If the use pattern consists of going to the range or a match, then go to the car and get some tools or the spare gun.
The amount of dirt that the external extractor can tolerate underneath it is far greater than that of an internal extractor, which accumulates the dirt right under the claw's locator pad. More dirt under the locator pad translates immediately into lost tension. If you get dirt/mud/etc. inside the slide, you can hit the slide with a hose or some brake cleaner and be done with it. You really have to work hard to get a lot of foreign material inside the external extractor's spring pocket when it's in a holster. If you got blasted with crud at a helo LZ and it's that bad, chances are the rest of your gun looks like a sugar cookie inside too and the extractor honestly is the last of your worries. If you consider how many modern pistols have external extractors that rarely ever see any service on them vs. all the 1911s that require some tweaking to their internal extractors, that's a clue.
As far as unit level maintenance, it's hands down for the external extractor. I don't know of too many armorers who have set up all the guns on a team or department with a fitted spare extractor. That's not very feasible when you need to do that for a whole big group. The very concept of the fitted spare is for a single end user (where it certainly does work well), but it just doesn't fly for a whole team. In fact, I don't even believe in the concept of the fitted spare, I always pack extra guns instead.
Properly executed, the external extractor breathes new life into the 100 year old pistol, and gives it a fighting chance to run with the new kids.
In regards to disassembly and maintenance, it certainly does require more tools to switch out an external extractor, but let's be realistic about what we want to do. If you're out on an extended rural patrol or on a deployment, that part of the gun can now be considered one unit, much like the lower of your M4, MP5, etc. Just like those weapon systems, don't take them apart until you're back in a controlled environment. If the use pattern consists of going to the range or a match, then go to the car and get some tools or the spare gun.
The amount of dirt that the external extractor can tolerate underneath it is far greater than that of an internal extractor, which accumulates the dirt right under the claw's locator pad. More dirt under the locator pad translates immediately into lost tension. If you get dirt/mud/etc. inside the slide, you can hit the slide with a hose or some brake cleaner and be done with it. You really have to work hard to get a lot of foreign material inside the external extractor's spring pocket when it's in a holster. If you got blasted with crud at a helo LZ and it's that bad, chances are the rest of your gun looks like a sugar cookie inside too and the extractor honestly is the last of your worries. If you consider how many modern pistols have external extractors that rarely ever see any service on them vs. all the 1911s that require some tweaking to their internal extractors, that's a clue.
As far as unit level maintenance, it's hands down for the external extractor. I don't know of too many armorers who have set up all the guns on a team or department with a fitted spare extractor. That's not very feasible when you need to do that for a whole big group. The very concept of the fitted spare is for a single end user (where it certainly does work well), but it just doesn't fly for a whole team. In fact, I don't even believe in the concept of the fitted spare, I always pack extra guns instead.
Properly executed, the external extractor breathes new life into the 100 year old pistol, and gives it a fighting chance to run with the new kids.