bambihunter

On my non-H2O version, I think they put the wrong receiver extension on, or didn't mount it correctly as it doesn't lock in the right position. If locked, the stock is quite canted. The original model of H2O (the NP3 coated version instead of Cerakote) is 11711. They are pricey to say the least. I saw one recently sell for ~$6k. They are easy to tell at a glance in their unmodified state. As Vertigo stated, the 11711 has a factory coated NP3 silver colored extension. The 11794 has a black one. Of course these can be Cerakoted to match the original. The picture below is of my 11711. This picture is from a listing for the 11794:

1 11794

That looks way better than I expected. Though this is a hack job of sorts, it does not look like it. Very nice. How much time did it take to do all that?

Looks as it was described. As you eluded to, the bolt face would have clear markings of the shell brass and primer areas if it had been shot a lot. Like mentioned above, looking at only the internals, I'd say you have a very nice "low mileage" M3.

I'll say that I too expect an item to be as pictured. If it says "photo may be a stock photo" or the like, that lowers my expectations some. But, it stated "Each Benelli M4 magazine comes factory individually wrapped and labeled for authenticity don't settle for less". I can't see what that label is on that mag tube packaging, but if it is anything other than Benelli factory print then I'd have issue with it. That very clearly describes it to be genuine Benelli part.

Good point Evolution. I was just thinking of collapsible / extended model.

I'll play... Here's my pair of H&K import M3T's. One little bit of trivia for anyone looking at these. Always verify the folding stock locks into the rear sight correctly. The rear sight is slightly different location for the non-folders and while it will fold properly, they won't lock like they should.

What finish is actually on it? NP3, Cerakote, something else? Or, just painted that color? I think a M3T folder would look awesome with that finish but those were all H&K to the best of my knowledge.

You can also look at the model numbers. The 11711 is the real NP3 model.

I'd add a tac light since you are going to want both hands on the weapon. Other than that, practice shooting around corners, etc. I don't think the M2 is as bad as a SBE would be for this, but with it, if you don't have the gun held securely, preferably against your body, it may not cycle right. It might fire, but not load the next round. I can hold either of my SBE's "free arm" and they will both do this on shells that work perfectly when shot normal. But, that said most likely you'll be shooting heavier loads for defense so it may not be an issue anyway.

If it isn't an H&K era, then it likely won't. I find the shorter chambers harder to ghost load. On my 3.5" SBE, I can load it quickly and float the 4th easily, even in the dark. SD above I believe is a gunsmith so his comments carry more weight than mine probably do. But, I had a Benelli rep back then tell me they were designed to 100% clear the round on the carrier. It wasn't designed as a way to hold more, it was how the gun would clear what would otherwise be a malfunction in the event an extra shell came out of the magazine. I'd trust my life on it. I have used it ever since I discovered it in ~1995 (whenever legal). I preferred to add a single shell back there instead of an extended mag tube out front which changes the swing for me.

They are great the way they are for hunting IMHO. Great balanced and a lighter weight. I think the main reason a mag extension isn't just a simple add-on is because of the way the barrel attaches to the magazine. At least on our 20 gauge, the ring is smaller than a 20 gauge shell so it couldn't pass through without major modification.

Unfortunately, since this is also an election year, I don't expect this to change until after November. And, even then only if a Pro-2a gets elected.

I guess you don't have good experience with that site. I love that site. I think this may largely be because I like and collect unusual or hard to find items that would take me years or decades to find otherwise. I've bought probably a dozen items on there that had production runs of less than 150 units (each). The local gun shows here in Oklahoma are an absolute joke. They are $10 to go to, and most have turned into Etsy, vape, and craft items with less and less firearms every time. Of course that doesn't include the incredible Wanenamacher Gun Show in Tulsa twice a year http://www.tulsaarmsshow.com/ This spring it was cancelled thanks to COVID. The next one is in November. If you have never been, it is worth the trip just for the experience. To quote their site: "If all our tables (2800 8ft. and 1300 6ft.) were placed end to end they would stretch 5.7 miles! If you spend the whole 18 hours we are open to the public and divide that by 4,200 tables, You will have 15.4 seconds to look at each table."

I always like to ask first. Thanks for everything truckcop. This has been educational. ?

It can also be used to show where things are rubbing together by finding what it has a different texture or missing.

The 922r rules are among the silliest laws created by BATF. The other big one in my opinion is requiring non FFL's to overnight, where from FFL to FFL it can be done normally. I mean, for the 922r, we can create exactly what is available already to the rest of the world and our police force, but for us only after a set number of US parts to make compliance. ?

Yep, they do. It doesn't get a ton of traffic, but if patient, it works quite well. I see you already put up a post. I also set up "saved searches" on the auction side to get notified when certain things are listed. Very handy when after those elusive items. I am sorry to get your hopes up DeepSix. I looked last night and the take off buttstock on my black M4 is also a pistol grip stock. It was changed out for collapsible. I thought it was a standard stock that was swapped to collapsible.

Thank you very much Truckcop! I had actually searched for the referenced post but I guess I didn't go back far enough. I found it later. Last night I realized that on the box end, partially obscured by black writing, is the serial number and it does match the barrel. On the box end, I assume the top line is S90 M1 (obviously M1 Super 90) CIL (cylinder bore), the "50" is probably the length in Centimeters and magnum due to the 3" chamber. However, I am not sure what "SB" would stand for. Last night I looked at the date code in the box on the barrel and it shows manufactured in 1987. Is that still during HK's partnership with Benelli? I am not sure when they started, and when it changed to BenelliUSA. I think the end of HK markings was maybe 97 or around there. No idea when they started though. If I list this for sale (on Gunbroker) do you mind if I use those pictures so people know what to look for as far as compatibility? I knew there was a one piece extended mag tube and the standard type. I didn't know there were 3 or that they weren't necessarily compatible without modifications. I've learned a few things the last couple of days on this and a few other posts about the compatibility between models. I have been a big Benelli fan since the early 90's. a HK SBE was my 2nd shotgun. Shortly after, it became my only shotgun since it could do it all. Since then, I've acquired 2 M3T top folders, a 11711 H2O M4 (NIB) and a standard M4 with the conversion and 922r parts to be legal with an extended mag and collapsible stock. Also, another SBE, 24", 26", and 28" barrels both from SBE and SBE2. I also got a slug barrel and modified forearm. I got a 20 gauge Montefeltro for my wife to skeet shoot with (she loves it and hits better now than ever before).

I have this barrel that I bought a few years ago that was allegedly a M1 slug barrel but when I got it, it turns out to be a smoothbore fixed choke barrel with basically fixed sights. It has sat in the safe since. I wondered if someone could recognize it by its S/N or features, particularly the lugs on the portion that goes into the receiver (marked in red). It has the short barrel lug of the early HK era. But, in the one picture you can see the end cap and box. That box is older than any I have seen before. It is marked "S90 M1 CIL. 50 SB Magnum and I will look again tonight but I believe the S/N is what is marked on the box. It is hard to make out looking at the pictures with the writing over it. This barrel is marked C047274. I believe that is the S/N. The last picture is compared to my M1T. It is NIB so I don't want to take it apart and risk dinging something My gun feeling is this is in fact a M1 barrel, and that the S/N does match the box, but not positive. Were there more than 1 type or era of these or does any M1 (and allegedly some M2) barrel work with this? I think ultimately I am going to sell it as it isn't what I was wanting, but it is hard to find buyers for a somewhat unknown barrel. Thanks for any help or insights you can offer.

I'll think about it in the mean time, if I decide yes, then I'll contact you soon. But, if you can't find it after 4-6 weeks or so (let the panic buying slow down), I might just to help a fella. ? I would certainly think someone might want to trade their standard stock for your pistol grip stock as that is the most common direction. Another idea is to go to Gunbroker.com and post on the WTB forums. There isn't a lot of traffic on it, but I have found some very hard to get items that way including a 1 of 151 made S&W 1046, a Benelli M4 H2O 11711 (most rare variant of the M4 if I am not mistaken), and Dan Wesson Razorback 1 of 150 series.

Matthew, all I can say is that chart above shows 1989 which was before the 1993 AWB so I'd call it pre-ban. I don't recall any other bans for shotguns. I think the best part is the factory early models can stay that way without having to worry about 922r compliance with changed parts to make the same thing. I have a couple of M3T's. Those are the top fold tactical folders that are quite uncommon, maybe even rare. I've heard all kinds of numbers for them, with most saying 180 of them in the USA and allegedly used at nuclear power plant facilities. That is all hear-say though so take it for what it's worth. as for use at nuclear

I have one that was taken off before I got it to put on a collapsible stock but I hadn't really thought about selling it. But, the gun still has all the original factory take-off stuff from the gun, as well as box, papers, and such. If you have been unsuccessful after a month or so, contact me again. I checked MGW and you can get notified when they have them. Price isn't bad really. https://www.midwestgunworks.com/page/mgwi/prod/81041 I didn't find it listed on my other couple of "go-to's".

I know they are getting rare, but would it have been better to start with a 11711 model. Don't get me wrong, I am not a fan on cars for instance, when someone buys the very top of the line (SS, Shelby, etc) and then changes it so much they might have been fine to start with base model. I watched a tv show one time where a buy brought in an original Chevelle LS6 454 (fastest factory option if I remember right). He pulled that out to put in either a crate engine or LS engine. But, I digress. You probably already know what they look like since you are a gunsmith, but if you need any pics of the original 11711 let me know. Mine is NIB so don't want to take it apart though.

Thank you for your help TruckCop. I have spent probably upwards of 40 hours on this subject since I first decided I wanted to make my SBE the "one gun for all occasions" type of gun. Seems most resellers just repost the part of the ad that says "Fits SBE II and SBE models. (SBE only–requires new-style forend)" and doesn't know either. I have a WTB ad on GunBroker as well as a "Saved Search" to notify me of every HK / Benelli listed for a barrel (or complete gun if it is 24" or factory slug) and also I still buy mint M3 folders when I find them and considering some of the other early ones just for collecting.