Mossberg 590A1 Problem

C

cabbit10

New member
I just picked up a Mossberg 590A1.

Got it home, inspected it, oiled it a bit, etc.

I installed a tacstar sidesaddle first thing.

I then loaded up some traditions snap caps and tried to dry fire it.

Loading one into the chamber and 3 into the magazine, and closing the action allowed me to pull the trigger no problem.

Cycling the action kicks out the one loaded into the chamber, and seems to load one into the chamber. I pull the trigger and it seems to be fine, however I cannot cycle the action after this, and I literally need to use all my bodyweight to do so.

I have not tried it with live rounds yet, and after this experience, I'm hesitant to do so.

Could this just be a snap caps issue, or should I send it to be serviced?

Any help is appreciated.
 
Off the top of my head I believe that the side saddle may be the problem.

Try loosening up on the trigger housing bolt, I believe that over tightening that bolt tightens up the action.
Just a guess though.
 
Well removing the sidesaddle fixed the problem.

It wasn't the trigger housing screw though, it was the upper chamber one.

Apparently the one in the kit was too thick and was putting pressure on the extractor.
 
After firing my 590-a1 and being very impressed, I later picked up some "snap caps" to allow for practice loading and dry firing. To my dismay they didnt want to cycle right and tended to lock into the cylinder. I solved this problem by imediately throwing out the snap caps and by never buying such rediculusly unneeded garbage again:barf: . I now still continue to enjoy shooting my favorite shotgun, the 590-a1 milspec.:)
 
Not everyone can get to the range daily and some folks like to train loading and cycling.
Click to expand...
I whole heartdly agree. I too would love to practice as well. But the snap caps I have seen here arnt design to work in pump or semi actions. They seem ideal for double barrels perhaps. They need to make dummy rounds that will safely work thru the action. Snap caps do not do this.
 
There's a ton of quality-looking metal snap caps for sale on the internet, but the best I've been able to find in stores are black hard plastic with a yellow spring primer. These feed flawlessly through my 870's.

The clear plastic thin-walled ones with the large internal spring and the red base are only good for relieving firing pin pressure, they will not cycle without double-feeding. I load one through the chamber when I'm relieving a firing pin for long term storage. (Yes I know it's not needed, I just like to.)

I use the black plastic ones after every cleaning to ensure the mag spring doesn't bind, the action loads true, and the ejection/trigger is gtg. Murphy pays me more visits then most, so doing a full test after assembly gives me peace of mind.:p
 
Mossbergs have always required a bit more tug after firing to slide the action. Maybe the snap-caps just weren't built to the "right specifications"?
 
Sidesaddle advice

Sounds like you have the problem cured by changing back to the original ejector screw and replacing or eliminating the snap caps. Give the gun a good cleaning to remove any grease that may have gelled up in the chamber and action. Also, shoot the heck out of it to break it in. As for shell holders, I don't personally like the tac star type that requires screws to mount. Check out 3gungear.com and try one of their stick on models. Their model uses very good quality elastic webbing that mates to a velcro piece that is stuck on the receiver using a 3m adhesive. Basically, clean and degrease the receiver, stick on the fuzzy side of the velcro, let it set, then slap on the shell holder. It goes on and off easily and doesn't drop shells due to rubber impregnated in the webbing (if you request it). No screws to worry about and it costs about 20 bucks. I have used them for patrol for about 4 years now and the system works.
 
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