[Benelli M4 changes over time?]

I hear there was a switch from a cast aluminum trigger housing to a plastic housing.  

[New Benelli M4 Multirail Gen 2 - Charging Handle Spins - Can't Remove from Bolt]

Try pulling a little harder.  

I recently purchased a new Benelli M4 and the removing the charging handle the first time was much stiffer than I expected.

[Walnut Furniture for Benelli M4 Just Dropped]

I can't quite snug up the stock with the bolt that came with it.  Unfortunately, the other bolts I have on hand are slightly too short.

[Walnut Furniture for Benelli M4 Just Dropped]

Thank you for letting me know.  I was thinking about buying a whole Turkish shotgun to get the wood furniture off it.

[M1014 Fixed Modified Choke & Slugs]

Heh, I'm in the opposite boat.  I have a gun that has the replaceable chokes, and I would rather have the fixed choke model.

 

Back when I used to have a M1014 model, I fired slugs with out any issue.  Still, your mileage may vary.

 

[Which Oil to use???]

I know this is an old thread, but I feel the need to point out that Militec-1 is not recommended for use as a lubricant by the military and did not pass military testing and evaluation.

Here is one government report on the failures of miltec-1  https://www.gao.gov/assets/gao-09-735r.pdf

Here is a quote:

Quote

MILITEC-1 Did Not Pass Any Tests and Evaluations as a Small Arms Cleaner, Lubricant, and Preservative

On an unrelated note.  Benelli's Ben-Oil appears to be rebranded MF-82.  On their site they point out that they are Benelli's supplier.  

https://www.mf82.it/en