Glock G29 gen 4.
For those curious about such things; I took my 9mm Glock 19 through a water survival training course:
Glock 19 poolwater/saltwater/poolwater test.
I recently put together a survival vest (for general aviation flying) built on the SV-2B vest platform, which includes a section that allows for carry of a firearm (far left).
In that section I put my Glock 19 (carried unchambered) and a spare mag. Thirty rounds total of Speer Gold Dot 124+P.
The interior of the section is lined with loop material so I used the ITS Holster Insert, which includes a webbing strap to hold that spare mag.
Sorta-disclaimer: I put this gun into the vest after three 3-Gun matches and had NOT cleaned or greased it [BD]
As an overall test I jumped in the pool with the fully loaded vest. Rather easy to swim around. I can do the survival float, I can even float on my back, without inflating anything.
In Panama City Beach, I took a water survival training class, designed primarily for pilots. The first day, in the morning, was class session, with the afternoon and evening as hands-on practice in the Gulf of Mexico, ie saltwater.
The second day was pool time in a chair dunker.
So all told the Glock, the two mags and the ammo, saw about two hours of pool water the first time, about 4 hours of saltwater the second time and 1 hour of pool water the third time.
For all these situations I INTENTIONALLY left the Glock alone, to basically air dry on its own.
I then let it sit in the vest for a week afterward.
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OBSERVATIONS:
In this first pic take note of the ejector. The orange originally went all the way to the tip. This is the only part I touched and the orange rubbed right off. So my suspicion of this being only surface oxidation seems to hold up, despite the horrendous looking nature of the photos
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FUNCTION TEST:
The slide hand cycled with barely noticeable extra effort, though it wasn’t smooth, but neither did it necessarily hang up on itself.
The trigger was slightly rougher and heavier.
But otherwise everything seemed to function fine.
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RANGE TEST:
I took it out to the range last night. The first round chambered fine lol.
The whole mag fired fine, every round went bang; no delays, no hang-fires. No funny prep done to the ammo, completely factory.
Five yards. This gun has always shot low but the group size shows I’m a bit more rusty than the gun
Second mag, same observations (this time aiming at the top of the green)
After these two mags I loaded the mags with Fiocchi 115 range ammo and popped off 50 rounds 3-Gun style. Glock and mags functioned fine.
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CONCLUSION:
It seems that finding oneself in the water and subsequently onto land won’t present a problem to the firearm in the short term, so I’m happy with that. I've heard stories from responders (hurricane and such) that their stainless 45 had a dusting of rust the same day.
I’m going to detail strip the Glock and the mags and use an M16 toothbrush to clean everything off. I suspect it will all literally brush off.
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CLEANING UPDATE
It was 50/50/50 whether the surface oxidation was blown off, the oxidation covered over with burnt powder, or the oxidation wiped off when I started scrubbing.
The only persistent area was the guide rod and spring assembly. That area mostly wiped off with the plastic M16 brush. I'll have to try a bit further with a copper brush.
Otherwise a normal field strip seemed to be enough to restore super-smooth function to the slide and trigger
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