juancarlos
CGN frequent flyer
- Location
- The Island
Maybe plastic vs metal trigger assembly.
Q re Magpul SGA buttstock on Mossy 590:
- Thread starter Cold Warrior
- Start date
Could be. The supplied instructions for the Mossberg SGA even list a disclaimer stating; "The stock bolt may require loosening in order to remove the trigger pack for cleaning or maintenance." I know that was definitely the case with my two 590s.
That was an unnerving prospect considering how flimsy the access cover is, so I sanded the clearance a few millimeters with light grit sandpaper rolled around a pencil.
That cover for the stock bolt is a steaming pos. The rubber version on the Rem SGA is far better. I had the Mossberg SGA on a 14" A1 with metal trigger group. Interesting that some have the issue while some don't.
juancarlos
CGN frequent flyer
- Location
- The Island
Agreed!!!
- Location
- Vancouver Island
I wish I had started this thread earlier.
Feh, I wish I had started this thread earlier. q:0/
Feh, I wish I had started this thread earlier. q:0/
Hey CW, I know that if it wasn't for bad luck (with accessory purchases) you'd have no luck at all!
- Location
- Somewhere on the Hudson Bay Coast
If I remove the trigger group from my 590, I have to slightly loosen the SGA to acquire sufficient clearance, so it seems that there is some latitude in the manufacturing tolerances. I suppose I could take a dremel to the stock, but loosening it isn't all that inconvenient, and the butt is usually removed if I'm removing the trigger group for cleaning anyway.
- Location
- Vancouver Island
"It works for ME!"
OK (Finally!)...
I got this stock in the post just the other day, and installed it last evening.
I decided to start out with zero shims, ie 12-1/4” LoP. Seems pretty good, a lot better than the OEM’s 13-3/4”. It’s easy to add/subtract shims, so I’ll bring a couple along to the range tomorrow. IDK yet if it’s necessary to loosen the stock to pull the trigger assembly out, but there appears to be ample clearance. Also, that rubber stock bolt cover seems relatively skookum compared to the covers on my mobile phone or Fuji X-20. Those tiny covers are ultimmo cheesy, yet they have not come assunder despite some lot of abruising by me.
Oh, and the stock bolt is not a 5/16 allen as per the factory manuelle, it’s a 3/8 allen—stronger than the first size but, since the access port is the same, that means less clearance to get the allen wrench turning. Interesting that Magpul tells us... 'A ball-end allen key is recommended for this operation'. But they give you this standard one, sans ball-end. Wha?? Anyhow, I tried a ball-end but alas, it didn’t make things easier—it was still a bit of a chore, taking ~50 quarter-turn bites until it finally seated.
It seems like Magpul has made some midway production changes, some fine tuning of the design details (possibly resulting from customer input? Imagine that!). All in all, it seems to be a good solid product, an innovative and sound design, but I’ll withhold my final judgment until I’ve run ~200 shells worth of shot down the pipe—and tried pulling the trigger group out when the stock is snugged up tight!
Other new additions are The AL JUMBO SAFETY SWITCH from S&J Hardware, an STI HEAT SHIELD, and the recently added
Mossberg METAL TRIGGER ASSEMBLY via Brownells. I may never know if the new stock is compatible with the OEM (plastic) trigger group since I'd already swapped the two just hours before the stock arrived. Ach, I'll find out soon enough.
It doesn't seem as big a deal as it would have been, had I kept the STI pistol grip stock I had mounted.
(to be continued...)
OK (Finally!)...I got this stock in the post just the other day, and installed it last evening.
I decided to start out with zero shims, ie 12-1/4” LoP. Seems pretty good, a lot better than the OEM’s 13-3/4”. It’s easy to add/subtract shims, so I’ll bring a couple along to the range tomorrow. IDK yet if it’s necessary to loosen the stock to pull the trigger assembly out, but there appears to be ample clearance. Also, that rubber stock bolt cover seems relatively skookum compared to the covers on my mobile phone or Fuji X-20. Those tiny covers are ultimmo cheesy, yet they have not come assunder despite some lot of abruising by me.
Oh, and the stock bolt is not a 5/16 allen as per the factory manuelle, it’s a 3/8 allen—stronger than the first size but, since the access port is the same, that means less clearance to get the allen wrench turning. Interesting that Magpul tells us... 'A ball-end allen key is recommended for this operation'. But they give you this standard one, sans ball-end. Wha?? Anyhow, I tried a ball-end but alas, it didn’t make things easier—it was still a bit of a chore, taking ~50 quarter-turn bites until it finally seated.
It seems like Magpul has made some midway production changes, some fine tuning of the design details (possibly resulting from customer input? Imagine that!). All in all, it seems to be a good solid product, an innovative and sound design, but I’ll withhold my final judgment until I’ve run ~200 shells worth of shot down the pipe—and tried pulling the trigger group out when the stock is snugged up tight!
Other new additions are The AL JUMBO SAFETY SWITCH from S&J Hardware, an STI HEAT SHIELD, and the recently added
Mossberg METAL TRIGGER ASSEMBLY via Brownells. I may never know if the new stock is compatible with the OEM (plastic) trigger group since I'd already swapped the two just hours before the stock arrived. Ach, I'll find out soon enough.
It doesn't seem as big a deal as it would have been, had I kept the STI pistol grip stock I had mounted.
(to be continued...)
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So they finally included a rubber stock bolt cover like the Rem version? And yeah, installation is annoying turning a loctited bolt 1/4 turn at a time! But its worth it, best tactical stock ever made IMO. And you don't even need to drink the kool aid to feel that way about it.
- Location
- East ontario
If you add an single point sling mount forc the mossberg poss even one made bys&j this will allow you thr cleanable you need
If you don't want to have a single point sling mount Sticking out just grind off the loop.
You will also need a longer stock bolt then what is supplied with the magpul stock.
Bbb
If you don't want to have a single point sling mount Sticking out just grind off the loop.
You will also need a longer stock bolt then what is supplied with the magpul stock.
Bbb
- Location
- Vancouver Island
Appearances can be deceiving...
Despite how perfect it all looked when I tightened up, the trigger assembly would not budge, no matter how hard I tugged on it. Determined to have it removable, I took the stock off in order to gain better access.
I tried increasing the gap using a strip of sandpaper wrapped around a pencil eraser, but that method was quite useless. Next I tried 50 strokes with my small rat-tail file and tried again. Still not enough. Ugh--at that rate it was going to need about 200 more strokes. Throwing caution to the winds, I grabbed the Dremel. Ten seconds with the 1/2" sanding drum finished the job; I should have quit at five. There's a 1/32" gap at the back end of that curve, but the trigger guard now moves freely through its final arc.
Now, if I can just learn the knack of holding the cartridge stop and interrupter in place while I ease the trigger assembly home....
Despite how perfect it all looked when I tightened up, the trigger assembly would not budge, no matter how hard I tugged on it. Determined to have it removable, I took the stock off in order to gain better access.
I tried increasing the gap using a strip of sandpaper wrapped around a pencil eraser, but that method was quite useless. Next I tried 50 strokes with my small rat-tail file and tried again. Still not enough. Ugh--at that rate it was going to need about 200 more strokes. Throwing caution to the winds, I grabbed the Dremel. Ten seconds with the 1/2" sanding drum finished the job; I should have quit at five. There's a 1/32" gap at the back end of that curve, but the trigger guard now moves freely through its final arc.
Now, if I can just learn the knack of holding the cartridge stop and interrupter in place while I ease the trigger assembly home....
Lol! Yup that's Mossberg (yuck)
If you insert the trigger pack with the gun resting upsidedown its easier.
You had a harder time than me with the sanding. I just did a few passes with sandpaper and it was good to go.
