Question on Benelli M1 and M2 shotguns...

[Slater]

Are the internals the same on these two shotguns or are there differences?

[NongShim]

They are essentially the same. Is there something specific you're wondering about?

[Slater]

Not really. I'm looking at buying an M1 from a local seller and was curious about it's design. I'm a novice to the inertial recoil system.

[TomMcC]

There is a difference in the bolt carriers which allow a M1 to be Ghost loaded (round on the lifter/carrier). The M2 has to be machined to do this. I can't remember exactly what needs to be modified to do this, a difference in a slot on the bottom of the carrier. For the vast majority it's an irrelevant difference.

[The_War_Wagon]

There is a difference in the bolt carriers which allow a M1 to be Ghost loaded (round on the lifter/carrier). The M2 has to be machined to do this. I can't remember exactly what needs to be modified to do this, a difference in a slot on the bottom of the carrier. For the vast majority it's an irrelevant difference.

I believe the M1's ability to hold one "in the float," was limited to the H&K mfgd. models. I have one of the LAST M1's (date code, 2002), and it does NOT allow for that.

[Slater]

The one I'm looking at has an 18 inch barrel, pistol grip stock, and Ghost Ring sights. Were these ever made with 20 inch barrels?

[TomMcC]

I believe the M1's ability to hold one "in the float," was limited to the H&K mfgd. models. I have one of the LAST M1's (date code, 2002), and it does NOT allow for that.

You're probably right. I haven't really kept up with it, it's all a bit hazy in my mind. I do have a HK model and it will do it.

[TomMcC]

The one I'm looking at has an 18 inch barrel, pistol grip stock, and Ghost Ring sights. Were these ever made with 20 inch barrels?

Don't believe so.

[Slater]

On the M1 Super 90, any particular things to look for when inspecting a prospective purchase?

[TomMcC]

On the M1 Super 90, any particular things to look for when inspecting a prospective purchase?

If possible, pull the barrel off and inspect the ejector housing. Make sure the inside bolt lug hasn't been battering the end of that housing. Mine has done this and I am in the process of getting the housing and rivet replaced.