Mossberg 930 SPX ... help!

XDmichael · April 11, 2009, 07:08 PM

So I just received a brand new Mossberg 930 SPX and promptly read the instructions manual and then disassembled it so it could be cleaned and oiled. I then put it back together and followed a break in regiment consisting of racking it repeatedly. Once that was done I disassembled it for a second time to observe the wear points and to clean out these new shaving deposits.

The problems is that this second time I disassembled it I set the shotgun down and a small spring+pin+cap type part fell out. I didn't recognize it and I can't seem to find it anywhere in the user manual.

Does anybody know where this piece came from or where I can find information about it??

Thank you all very much.

RoscoeC · April 12, 2009, 09:35 AM

You are correct, I see nothing on the exploded view that looks like these parts. That leads me to believe that they are from one of the 4 items that are listed as assemblies, and thus aren't exploded. The gas piston assembly can be ruled out. That leaves the Trigger assembly, Bolt assembly or the Bolt carrier. Could this perhaps be the parts that retain the bolt operating handle?

I''m just guessing here, but I would look closely at those three and see if there isn't an empty hole somewhere.

Smitty in CT · April 12, 2009, 09:47 AM

The pin, cup, and spring are your hammer spring / cocking indicator.

They are part of your trigger group

When your hammer is cocked, it will look like this:

Put you hand over the hammer and pull the trigger and release the spring tension:

Let the hammer go all the way forward, like this:

The pin, spring, and cup go into the trigger group as shown here:

Does that help??

hogdogs · April 12, 2009, 09:53 AM

Smitty, Very good explanation from what I see... I will remember to hit you up with questions when I finally splurge on a Mossberg auto loader...
Brent

4thPointofContact · April 12, 2009, 12:04 PM

Don't feel bad, you learned the lesson the same way I did....

Don't disassemble the 930 with the hammer uncocked or you'll lose parts. Do it like the manual says and the hammer will be cocked before disassembly.

Homerboy · April 13, 2009, 09:12 AM

Same thing happened to me. I figured it out on my own, but there was a lot of cursing before I hit it. Smitty's post is excellent. I never realized the culprit was I was taking it apart with the hammer uncocked. NExt time I disasseble it, I'll leave it cocked.

zippy13 · April 13, 2009, 09:40 AM

Greetings, XDmichael, and welcome aboard,

Smitty in CT did such an outstanding job there's not much left to do, except to say: Hello, and congratulate you on your new acquisition. Now, go get a mess of shells and give it (and you) a thorough breaking-in.

XDmichael · April 13, 2009, 10:34 PM

WOW!! Smitty your post is fantastic! I don't think I've ever seen a more detailed and spot-on reply!

Zippy13, thank you! I cannot wait to get this fantastic gun out on the range! I've got plenty of ammo ... now I just have to find the time.

Overall ... thanks everybody for the help. I got pretty worried there for a bit ... but now that little part is no longer a mystery.

jve153 · January 4, 2012, 12:13 AM

i had this same issue tonight, came across this in google search. joined the forum specifically to say thank you

hogdogs · January 4, 2012, 10:47 AM

Glad you joined... Now stick around and tell us about yer guns...

Brent

Gehrhard · January 4, 2012, 09:07 PM

I thought it was the part that makes these guns have problems. If it were I'd love to buy one with a Monte Carlo stock. In reality, seems like it really is unnecessary. Could we keep it out?

Either way, welcome, enjoy, and be safe. Nicely put together response -- good to take the time out to do that all!

BobbyChis · June 14, 2012, 04:06 PM

Smitty thanks for the pics I was having a tough time reassembling the trigger group. It took me a few seconds to put it back together.

April 12, 2009, 09:35 AM	#2
RoscoeC Senior Member Join Date: February 21, 2006 Location: DFW Metromess Posts: 562	You are correct, I see nothing on the exploded view that looks like these parts. That leads me to believe that they are from one of the 4 items that are listed as assemblies, and thus aren't exploded. The gas piston assembly can be ruled out. That leaves the Trigger assembly, Bolt assembly or the Bolt carrier. Could this perhaps be the parts that retain the bolt operating handle? I''m just guessing here, but I would look closely at those three and see if there isn't an empty hole somewhere. __________________ “Life is either a daring adventure or nothing." --Helen Keller "Do not cry havoc when you should but hunt with modest warrant." --William Shakespeare Glock Certified Armorer NRA Life Member

April 12, 2009, 09:47 AM	#3
Smitty in CT Senior Member Join Date: August 30, 2006 Location: Moodus, CT Posts: 590	The pin, cup, and spring are your hammer spring / cocking indicator. They are part of your trigger group When your hammer is cocked, it will look like this: Put you hand over the hammer and pull the trigger and release the spring tension: Let the hammer go all the way forward, like this: The pin, spring, and cup go into the trigger group as shown here: Does that help?? __________________ Smitty "The object of war is not to die for your country, but to make the other bastard die for his." -- Gen. George Patton

January 4, 2012, 12:13 AM	#9
jve153 Junior Member Join Date: January 4, 2012 Posts: 1	necroposter i had this same issue tonight, came across this in google search. joined the forum specifically to say thank you

June 14, 2012, 04:06 PM	#12
BobbyChis Junior Member Join Date: June 14, 2012 Posts: 1	Mossberg 930 SPX Smitty thanks for the pics I was having a tough time reassembling the trigger group. It took me a few seconds to put it back together.

April 12, 2009, 09:53 AM	#4
hogdogs Staff In Memoriam Join Date: October 31, 2007 Location: Western Florida panhandle Posts: 11,069	Smitty, Very good explanation from what I see... I will remember to hit you up with questions when I finally splurge on a Mossberg auto loader... Brent

April 12, 2009, 12:04 PM	#5
4thPointofContact Junior member Join Date: September 22, 2007 Posts: 197	Don't feel bad, you learned the lesson the same way I did.... Don't disassemble the 930 with the hammer uncocked or you'll lose parts. Do it like the manual says and the hammer will be cocked before disassembly.

April 13, 2009, 09:12 AM	#6
Homerboy Junior member Join Date: June 16, 2004 Location: Pennsylvania Posts: 1,320	Same thing happened to me. I figured it out on my own, but there was a lot of cursing before I hit it. Smitty's post is excellent. I never realized the culprit was I was taking it apart with the hammer uncocked. NExt time I disasseble it, I'll leave it cocked.

April 13, 2009, 09:40 AM	#7
zippy13 Senior Member Join Date: August 23, 2008 Location: SoCal Posts: 6,442	Greetings, XDmichael, and welcome aboard, Smitty in CT did such an outstanding job there's not much left to do, except to say: Hello, and congratulate you on your new acquisition. Now, go get a mess of shells and give it (and you) a thorough breaking-in.

April 13, 2009, 10:34 PM	#8
XDmichael Junior Member Join Date: April 11, 2009 Posts: 5	WOW!! Smitty your post is fantastic! I don't think I've ever seen a more detailed and spot-on reply! Zippy13, thank you! I cannot wait to get this fantastic gun out on the range! I've got plenty of ammo ... now I just have to find the time. Overall ... thanks everybody for the help. I got pretty worried there for a bit ... but now that little part is no longer a mystery.

January 4, 2012, 10:47 AM	#10
hogdogs Staff In Memoriam Join Date: October 31, 2007 Location: Western Florida panhandle Posts: 11,069	Glad you joined... Now stick around and tell us about yer guns... Brent

January 4, 2012, 09:07 PM	#11
Gehrhard Junior member Join Date: July 15, 2009 Location: East of the Missississippippi Posts: 675	I thought it was the part that makes these guns have problems. If it were I'd love to buy one with a Monte Carlo stock. In reality, seems like it really is unnecessary. Could we keep it out? Either way, welcome, enjoy, and be safe. Nicely put together response -- good to take the time out to do that all!