P Henry Posted February 26, 2012 Share Posted February 26, 2012 I purchased this "Police Trade-in" a little while back. It is an HK-marked Benelli M1S90, AZ date code, serial number M092XXX. The barrel measures 19 5/8" and does not have a removable choke. I assumed the 7 rd magazine was OEM, but now I'm not so sure. Here are the details: The tube holds 7 rds of Rem Long Range or Fed Low Recoil Buck, but not quite 7 rds of Federal 1325fps Buck. The latter fit, but so tightly that the carrier release won't release them. I took it apart to investigate further. I expected the mag tube to thread into the receiver, but it actually appears to thread into a short (~1") extension which is then threaded into the receiver. The long tube itself has threads in the middle for the barrel/handguard retainer and sling mount, and the muzzle end is open. Anyone know what I have? OEM or aftermarket? TIA for the help... Quote Link to comment Share on other sites More sharing options...
P Henry Posted March 2, 2012 Author Share Posted March 2, 2012 A couple more angles: Quote Link to comment Share on other sites More sharing options...
truckcop Posted March 2, 2012 Share Posted March 2, 2012 OEM. Those first imports had the full-length mag tube. Quote Link to comment Share on other sites More sharing options...
P Henry Posted March 2, 2012 Author Share Posted March 2, 2012 Thanks. I expected the full length tube to thread into the receiver though, like the M4. Is this not the case, i.e. the little short piece threaded into the receiver is normal? Quote Link to comment Share on other sites More sharing options...
truckcop Posted March 3, 2012 Share Posted March 3, 2012 (edited) That's what mine looks like too but I've never taken the tube off the receiver so I'm not certain how it's put together. I have an older schematic that shows the tube as one piece. Who knows? If you're not having a problem with it feeding the last couple of shells out of the tube, I wouldn't worry about it. Mine's over 20 years old, gets shot regularly and have never had a problem feeding out of the magazine. Edited March 3, 2012 by truckcop Quote Link to comment Share on other sites More sharing options...
P Henry Posted March 3, 2012 Author Share Posted March 3, 2012 I just want to clean it and maybe replace the spring. I'd like to look at the follower and retainer to see if I can get another 1/8" or so of space so the full-house Federal Buck will fit and feed (7 rds). I've seen the schematic that shows just one piece, not two. Thanks for letting me know there are others like this one. Quote Link to comment Share on other sites More sharing options...
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