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Showing content with the highest reputation on 07/05/20 in all areas

  1. Correct. When you look down the barrel of the current production M4, you will see two ports. One port for each ARGO plug. On the 4 port models, each ARGO plug had two ports about half an inch from each other. I haven’t seen one of these 4 port barrels in years. My burnt bronze M4 came with one when I bought it in 2004. It was the first release of the 11703 models with the neutered receiver extension. Within the first outing, I snapped a piston in half firing 2 3/4 buckshot. Took Benelli a month or more to send me a new piston after mailing them the broken one. Then for another 7000 rounds, the shotgun performed okay until I noticed that the bolt carrier was getting stuck when pulled to the rear of the receiver. Closer inspection found that the face of the bolt carrier was mushroomed where the pistons make contact. The carrier was so badly deformed that it was binding inside the receiver. The 4 port barrel was battering the carrier to death. Trip back to Benelli at this point at my expense. Benelli replaced the entire bolt carrier group, barrel assembly, pistons, ARGO plugs, and handguards with 11707 model parts. Now at 17,000 rounds, no more issues have been encountered.
    1 point
  2. The 11707 forward had the larger seat ring on the barrel and the modifications to the hook shaped area at the rear part of the barrel extension. Many of the Benelli sales photos showed the trigger guard and even the collapsible stock bodies, top rail Np3 plated. They either back peddled upon release or they had just photoshopped them. The only M4’s with plated trigger packs are ones people have had done themselves. They either did this as a cost savings issue or they determined the oem trigger frames were riddled with pits in the aluminum casting which show up better when NP3 plated.
    1 point
  3. Pretty much look at the difference between the M2 and M1 barrels. I am rather certain that is when to transitioned to the new barrel extension. It is just a larger ring right at the end of the barrel that gives more support to the receiver. The majority of M4s have the newer barrel.
    1 point
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