Do you really need maritime spring cups for your Glock?

Andrew Wiggin · June 1, 2015, 03:49 PM

Will your Glock fire underwater without them? Are they just a gimmick?

Don't cheat. Make your prediction before you watch the video.

Fat guy wet T-shirt contest

JN01 · June 1, 2015, 04:05 PM

Can't think of a scenario where I would need to fire a Glock underwater.

Sharkbite · June 1, 2015, 04:07 PM

The spring cups only allow the striker to move more freely in the channel full of water. W/o them the hydraulic pressure of the striker moving forward slows it to the point it may not hit the primer hard enough.

If it goes bang it will cycle. The point of the H2O spring cup is to get it to go bang

Andrew Wiggin · June 1, 2015, 04:26 PM

Quote:

Can't think of a scenario where I would need to fire a Glock underwater.

You're serving ice cream at the pool party for your kid's birthday when Bigfoot tackles you and knocks you into the pool, dragging you to the bottom. You have only moments before the hairy beast cracks your skull open against the bottom of the pool.

Walt Sherrill · June 1, 2015, 04:33 PM

Quote:

You're serving ice cream at the pool party for your kid's birthday when Bigfoot tackles you and knocks you into the pool, dragging you to the bottom. You have only moments before the hairy beast cracks your skull open against the bottom of the pool.

As I understand it, what you've described is part of the Bigfoot mating ritual. That hairy beast is probably a SHE not a he, and it may not be your skull that gets banged against the bottom of the pool.

A handgun that fires underwater might be useful, but other forms of protection may be called for in this case.

Skans · June 1, 2015, 04:52 PM

In order to get it to fire consistently under water, you need the maritime cups and a stronger firing pin spring which comes with the kit. I bought this for my Glock 17 years ago. No reason, just felt I needed it!

Gats Italian · June 1, 2015, 04:55 PM

Quote:

Can't think of a scenario where I would need a . . .Glock.

Now it reads right.

Andrew Wiggin · June 1, 2015, 04:58 PM

Oh, well that's easy. Glocks are useful pretty much any time someone wants to actually carry and shoot their gun, rather than wrap it lovingly in a soft cloth and whisper lullabies to it once a week when it is removed from the safe for its weekly anti-corrosion treatment.

Mrgunsngear · June 1, 2015, 05:03 PM

FWIW TWANGnBANG has a really good video test/demo of this issue.

Brit · June 1, 2015, 05:13 PM

Bought a whole bunch of IVI Mil Speck 9mm one time 300,000 rounds, primers were hard! Stronger spring would have helped, we just tenderized the primers. Tedious, but it worked.

Guess how much? 1c a round Canadian.

noonesshowmonkey · June 1, 2015, 05:31 PM

Quote:

Originally Posted by JN01

Can't think of a scenario where I would need to fire a Glock underwater.

...or you serve in the US Navy or Coast Guard. Or work the boat for a major metro PD/Sheriff's department such as Miami-Dade. It isn't so much about shooting underwater as much as being able to shoot it immediately after immersion, and without clearing the weapon before firing.

Bongo Boy · June 1, 2015, 05:57 PM

I like experiments and, while I thought this was just silly nonsense initially, I changed my mind immediately after realizing I won't always stay dry in the sea kayak, and may need a fully-functioning weapon after getting dunked.

It also highlighted the fact that it's been well over a year since I took either my G20 or G29 apart, and I really had no earthly idea what a 'spring cup' was.

marine6680 · June 1, 2015, 06:17 PM

Quote:

As I understand it, what you've described is part of the Bigfoot mating ritual. That hairy beast is probably a SHE not a he, and it may not be your skull that gets banged against the bottom of the pool.

A handgun that fires underwater might be useful, but other forms of protection may be called for in this case.

Yeah...

Deaf Smith · June 1, 2015, 06:22 PM

All my Glocks have the maritime cups. That and NY-1/3.5 lb connectors. All of 'em.

No, I don't plan on shoot it underwater but I felt allowing air to pass the striker would speed it up a bit and help reduce any chances of a misfire or hangfire with bad ammo.

Being able to fire them underwater is a bonus.

After all folks, these ARE combat guns, right?

Deaf

James K · June 1, 2015, 06:37 PM

"Bigfoot tackles you and ...."

Happens all the time; best to be prepared.

Jim

Sharkbite · June 1, 2015, 06:39 PM

Quote:

"Bigfoot tackles you and ...."

Happens all the time; best to be prepared.

It only happens if you mess with his beef jerky.

ritepath · June 1, 2015, 08:15 PM

Uh why would my glock or any other gun be under water? Sure I lost a rod on the river this weekend from my kayak, but I still had 2 up top and 3 below deck.

How stupid can one get???

Gats Italian · June 2, 2015, 12:12 AM

Quote:

After all folks, these ARE combat guns, right?

Allegedly, they seem immune to donut glaze infiltration anyway.

Skans · June 2, 2015, 10:35 AM

Quote:

After all folks, these ARE combat guns, right?

I prefer one of the following politically incorrect names for my Glock 17:

"Assault Handgun"
"IDM (Instant Death Machine)"
"Infinite Capacity Handgun"
"Widow and Orphan maker"
"Black Plastic Buzz Saw"
"The Punisher's Punisher"
"Bomb-proof Bullet Hose"
"The Chosen Handgun"

TunnelRat · June 2, 2015, 02:02 PM

Need is a strong word. If you want them go for it.

kilimanjaro · June 2, 2015, 02:44 PM

Don't shoot the Sasquatch, it's illegal in several states ! Use your ice cream to entice the primates out of the pool before their long fur clogs the filters.

jmohme · June 2, 2015, 03:23 PM

JN02 "Can't think of a scenario where I would need to fire a Glock underwater."

Your obviously have not been to Texas lately!

hoghunting · June 3, 2015, 11:05 AM

Quote:

Will a Glock fire under water with factory spring cups?
No.
Yes.
Yes, but it won't cycle.
Yes, but only once.
Yes, but it will also explode

You forgot one: Who cares???

Andrew Wiggin · June 3, 2015, 11:07 AM

Strange. You cared enough to post in the thread.

Glenn E. Meyer · June 3, 2015, 11:41 AM

IIRC - in past threads on underwater Glocks, it was stated that they were in common use for divers in Australia for shark defense.

There used to be zillions of underwater Glock threads.

Now someone will ask if you can shoot a Glock in space. Remember those?

View Poll Results: Will a Glock fire under water with factory spring cups?
No.	10	28.57%
Yes.	12	34.29%
Yes, but it won't cycle.	8	22.86%
Yes, but only once.	4	11.43%
Yes, but it will also explode.	1	2.86%
Voters: 35. You may not vote on this poll

June 1, 2015, 03:49 PM	#1
Andrew Wiggin Senior Member Join Date: December 22, 2012 Posts: 516	Do you really need maritime spring cups for your Glock? Will your Glock fire underwater without them? Are they just a gimmick? Don't cheat. Make your prediction before you watch the video. Fat guy wet T-shirt contest Last edited by Andrew Wiggin; June 1, 2015 at 04:20 PM.

June 1, 2015, 05:03 PM	#9
Mrgunsngear Senior Member Join Date: May 13, 2011 Location: Carolina Posts: 3,415	FWIW TWANGnBANG has a really good video test/demo of this issue. __________________ Mrgunsngear Youtube Channel

June 1, 2015, 05:57 PM	#12
Bongo Boy Senior Member Join Date: December 18, 2008 Location: Colo Spgs CO Posts: 517	I like experiments and, while I thought this was just silly nonsense initially, I changed my mind immediately after realizing I won't always stay dry in the sea kayak, and may need a fully-functioning weapon after getting dunked. It also highlighted the fact that it's been well over a year since I took either my G20 or G29 apart, and I really had no earthly idea what a 'spring cup' was. __________________ NRA Benefactor Member “If I had to live my life again, I'd make the same mistakes, only sooner.” T Bankhead "I think only the authorities should have weapons." The New American Electorate

June 1, 2015, 06:22 PM	#14
Deaf Smith Senior Member Join Date: October 31, 2000 Location: Texican! Posts: 4,453	All my Glocks have the maritime cups. That and NY-1/3.5 lb connectors. All of 'em. No, I don't plan on shoot it underwater but I felt allowing air to pass the striker would speed it up a bit and help reduce any chances of a misfire or hangfire with bad ammo. Being able to fire them underwater is a bonus. After all folks, these ARE combat guns, right? Deaf __________________ “To you who call yourselves ‘men of peace,’ I say, you are not safe without men of action by your side” Thucydides

June 1, 2015, 04:05 PM	#2
JN01 Senior Member Join Date: May 16, 2005 Location: E Tennessee Posts: 828	Can't think of a scenario where I would need to fire a Glock underwater.

June 1, 2015, 04:07 PM	#3
Sharkbite Senior Member Join Date: November 4, 2013 Location: Western slope of Colorado Posts: 3,679	The spring cups only allow the striker to move more freely in the channel full of water. W/o them the hydraulic pressure of the striker moving forward slows it to the point it may not hit the primer hard enough. If it goes bang it will cycle. The point of the H2O spring cup is to get it to go bang

June 1, 2015, 04:52 PM	#6
Skans Senior Member Join Date: November 20, 2008 Posts: 11,132	In order to get it to fire consistently under water, you need the maritime cups and a stronger firing pin spring which comes with the kit. I bought this for my Glock 17 years ago. No reason, just felt I needed it!

June 1, 2015, 04:58 PM	#8
Andrew Wiggin Senior Member Join Date: December 22, 2012 Posts: 516	Oh, well that's easy. Glocks are useful pretty much any time someone wants to actually carry and shoot their gun, rather than wrap it lovingly in a soft cloth and whisper lullabies to it once a week when it is removed from the safe for its weekly anti-corrosion treatment.

June 1, 2015, 05:13 PM	#10
Brit Senior Member Join Date: January 29, 2005 Location: Orlando FL Posts: 1,934	Bought a whole bunch of IVI Mil Speck 9mm one time 300,000 rounds, primers were hard! Stronger spring would have helped, we just tenderized the primers. Tedious, but it worked. Guess how much? 1c a round Canadian.

June 1, 2015, 06:37 PM	#15
James K Member In Memoriam Join Date: March 17, 1999 Posts: 24,383	"Bigfoot tackles you and ...." Happens all the time; best to be prepared. Jim

June 1, 2015, 08:15 PM	#17
ritepath Senior Member Join Date: February 22, 2009 Location: Virginia Posts: 1,419	Uh why would my glock or any other gun be under water? Sure I lost a rod on the river this weekend from my kayak, but I still had 2 up top and 3 below deck. How stupid can one get??? __________________ There's only one...

June 2, 2015, 02:02 PM	#20
TunnelRat Senior Member Join Date: May 22, 2011 Posts: 12,212	Need is a strong word. If you want them go for it.

June 2, 2015, 02:44 PM	#21
kilimanjaro Senior Member Join Date: November 23, 2009 Posts: 3,963	Don't shoot the Sasquatch, it's illegal in several states ! Use your ice cream to entice the primates out of the pool before their long fur clogs the filters.

June 2, 2015, 03:23 PM	#22
jmohme Member Join Date: January 14, 2012 Location: Bastrop Texas Posts: 77	JN02 "Can't think of a scenario where I would need to fire a Glock underwater." Your obviously have not been to Texas lately!

June 3, 2015, 11:07 AM	#24
Andrew Wiggin Senior Member Join Date: December 22, 2012 Posts: 516	Strange. You cared enough to post in the thread.

June 3, 2015, 11:41 AM	#25
Glenn E. Meyer Senior Member Join Date: November 17, 2000 Posts: 20,064	IIRC - in past threads on underwater Glocks, it was stated that they were in common use for divers in Australia for shark defense. There used to be zillions of underwater Glock threads. Now someone will ask if you can shoot a Glock in space. Remember those? __________________ NRA, TSRA, IDPA, NTI, Polite Soc. - Aux Armes, Citoyens