Mossberg 151MB .22LR rifle


Quintin Likely
January 19, 2007, 04:16 PM
I don't suppose anyone would have any info about these things, would you? A friend of mine has one we've been tinkering with - it's proven to be a very accurate rifle, with one slight problem, in that it has a tendency to fire more than one round at a time :eek:

Any place where we could find some nice, detailed exploded diagrams and parts breakdowns would be sweet. The closest we've come is the Model 252 (I think) in a Numerich's catalog, and even then their diagram isn't all that great. Or if anyone's got any ideas on what's making this thing go full auto, we're all ears. It was kinda fun the first couple times, load the magazine up with five rounds, the first two go off as planned, then the last three are one quick burst, but beyond that, we gotta get it fixed.

Thankee. :)

If you enjoyed reading about "Mossberg 151MB .22LR rifle" here in archive, you'll LOVE our community. Come join today for the full version!
January 19, 2007, 06:39 PM
I recently had to repair my old Mossberg 380 .22LR. I went to the Mossberg site and found a link that seemed like a waste of time, but it panned out for me.

I registered (for free) and they sent me a manual to my gun! I didn't even ask for it. They just asked me what kind of gun I owned during the registration process. That manual gave me the parts list and diagram that I needed to order the right part and fix my gun, and I had never gotten into the guts of a gun before.

I ordered the parts I needed from these folks. They had very fast service. I think they sell the manuals there if you don't want to wait on a free one.

July 30, 2008, 11:06 PM
He helped Quintin Likely with a Mossberg 380 question.

I need a bolt that holds the trigger guard on.
This bolt, I believe goes through to the feed tube.

Can anyone help?

Thank you,
Meridian, Idaho

Rey B
July 30, 2008, 11:41 PM
You might also try the Mossberg section of There are many very knowledgeable folks on there that love their Mossys

July 30, 2008, 11:43 PM
You may have better luck starting a new thread, but here's a couple links that might help.

Exploded view:


June 27, 2009, 08:24 AM
I also have a Mossberg 151mb with the same problem of firing multiple rounds! Was a solution found to repair ? I contacted Havelin and they suggested moving the outer feed tube back. Any help in resolving this issue would be greatly appreciated.

If you enjoyed reading about "Mossberg 151MB .22LR rifle" here in archive, you'll LOVE our community. Come join today for the full version!