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seed
08-11-2010, 11:22 AM
My first post here.

Anyway, I recently took apart the slide to solve a problem which occurred after my DE M19 came back from a shooting trip. The slide would not budge when either my brother or I tried to rack it until the third, fourth or fifth try whenever it was closed. So I decided to thoroughly clean and heavily lube the bolt and related parts. It did the trick and now the slide racks smooth as glass every time. I will explain in more detail in another post. But anyway, in order to get to these parts, I of course had to remove the firing pin stop. Unfortunately it was a California pin stop with its retarded "drop safety".

To remove it, I had to depress the additional safety plunger and then while holding it down, depress the back of the firing pin. Then I could let go of the safety plunger and turn the safety on to hold the firing pin forward as I slid the plate off. Upon doing this, a super cheap and easy to lose tiny coil spring fell out. That was the easy part. But getting that damned spring back in place was ridiculous. The design is so terrible that it can only be described as an afterthought. I wasn't even sure I got it back in right. It didn't matter. The next day I called Magnum Research and ordered the normal plate. You could tell the guy on the line felt my pain as he did not have to ask why I wanted it. He knew exactly why.

Well, long story short -- I took out the California plate and put in the correct normal plate. It worked instantly and upon close examination of the CA plate, what a relief I replaced it with the proper part as the potential for the CA plate to malfunction and prevent the firing pin from being struck when pulling the trigger seemed a very real possibility. What a horrible thing it is. If anyone's interested, I'll explain how it works...but I am off to bed right now (work nights). In the mean time, if you have a California-OK DE with the special "drop-safety" plate, do what I did and replace it immediately.

Excavator
08-11-2010, 12:16 PM
You got that right!

With the CA model you have some serious dicking around with that firing pin assembly when breaking it down and reassembling.
It's liking to working on a Colt series 80 1911 slide in comparison to a serious 70 1911 slide.
Thanks for the detailed explanation! common smile

seed
08-11-2010, 01:00 PM
Well, I haven't gone to bed yet! So I thought I might explain the old California plate a little more. The way it apparently works is there is a plunger just below the hole where the back of the firing pin pokes through to be exposed to the hammer. Well, when that plunger is returned to its functional position by that tiny coil spring I mentioned, it serves to allow a sort a thin piece of metal (part of a non-coiled spring) to physically prevent the firing pin from going forward unless the hammer hits the plunger at the same time it hits the firing pin...I guess that thin metal bar sits in a slot near the back of the firing pin which is out of sight when the gun is assembled or it's just pressing against the firing pin...I'll have to look at the firing pin someday to find out for sure. But I just noticed in the Cali part that the thin metal piece (it looks like it came from a miniature paper clip in terms of appearance) is recessed in the plate, forward of where you would see the back of the firing pin. Anyway, once the hammer is lifted off the plunger and firing pin, the tiny coil spring which sits loosely forward of the plate and anterior portion of the plunger returns the plunger towards the posterior of the pistol, which then returns that tiny metal bar back towards (and perhaps in a recess of) the firing pin.

Problems can arise from all sorts of possibilities, including crud or dirt messing up the ability of the plunger to be pushed forward quickly or geometrically enough to allow the firing pin to go forward upon being struck by the hammer. Also like I said, getting that tiny coil spring back in the right spot is a biatch and I wasn't even sure I did it right afterwards. I almost lost it like five times! In the end, the proper part (non-Cali, original plate) left no doubt that it belonged and you can tell instantly you did the right thing by putting it there.