Mossberg plastic trigger group - Replacment?

As I recall, (Note the qualifier) the Mossberg 500 and the 590-A1 are the same basic receiver and action.
The 590-A1 (NOT the 590) has an aluminum guard that should fit the 500.

Now the bad news: Mossberg will not just sell you the guard. You have to send the gun in and let them fit it to your gun.
 
Here's the good news. The plastic is less likely to break than the metal guard. I totally understand the instinct for metal, but plastic is actually a better choice for a gun that may get banged around.
 
I replaced *one* broken trigger guard on a Mossberg 500 in my smithing career. That's one seriously strong piece of plastic.
 
I've been shooting and collecting guns since the mid-1960s. I've owned and handled a lot of shotguns. I've seen very few (probably no more than 2-3 at most) shotguns with cracked plastic triggerguards....and none that I remember were broken to the point of being unusable. That's in 45 years. Personally I think it's a non-issue.
 
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You *may* consider changing the safety to a metal one perhaps. But still, the plastic ones on new mossbergs are tightened down more tightly than previous years.
 
A lot of people want to put an aluminum trigger group on a Remington 870, thinking it's stronger or better.
When they hear that the 870 aluminum guard is actually made of compressed powdered aluminum, they have second thoughts.
I suspect that Mossberg's guard is too.

Truth is, a plastic shotgun trigger group is probably just as good as aluminum and in many ways, better.

Plastic will flex and return to shape after a blow that will break or bend an aluminum guard.

Plastic is self-lubricating and non-corroding.

Plastic has no finish to wear off and look ratty.

On one of the gun forums a few years ago we had a post for people to report broken plastic shotgun parts.
Other than a couple of Remington plastic magazine followers, there wasn't much.
I've only seen one broken plastic trigger group and that was after an accident that pretty much destroyed the gun. Even a steel guard would have failed.

However even with all that, I still prefer the aluminum trigger group. Old habits die hard.
 
Even if the plastic is more resilient... I hate the feel of plastic... And with me, if anything annoys me about the gun, I don't shoot it well... I kick myself every time I see my brother with the 1962 wingmaster I sold him, its built so much better than the 2006 wingmaster I bought new..
 
Here's the good news. The plastic is less likely to break than the metal guard. I totally understand the instinct for metal, but plastic is actually a better choice for a gun that may get banged around.
Click to expand...

It should be noted that it's not ordinary plastic, but rather polymer, like Glock frames are made of.
 
I don't have any idea ( I have no dog in this fight ) ....all I was saying is Brownells had them - and I ordered some trigger group replacments for some friend of a friend - that were piggy-backing on my Brownells orders ...

What models they fit, didn't fit, how they fit, what broke or didn't break .....I have no idea ....
 
The plastic trigger group will be stronger and more durable than the older aluminum ones. A blued steel unit might be an improvement, but would likely cost half as much as the gun even if available. The Mossbergs as well as the 870 Express are working guns, not show guns anyway.
 
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