Posted: 3/8/2008 9:38:04 AM EDT
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I have a hydramatic M16 serial 3244*** Need some quick info and don't have time to research The lower receiver says M16A1 I assume that would be its original configuration It now has: A1 grip M4 Stock 16inch 1/9 Hbar Round midlength tapered grips A1 upper without shell deflector Tear drop assist I also assume this is just a rebarreled upper and the stock was swapper. Any insight what I could have on my hands here? |
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It belongs to the Gov. hinking.gif Its a true M16 FA receiver without the auto sear |
I love the immediate assumption that he has an unregistered NFA item Can't someone ask a question without getting a slew of comments telling him he'd better have a form 4? Case in point: 
 Some people here seriously need to grow up. |
sounds to me like it's just a parts bin mongrel now i like the hydramatic guns, don't get to see them very often anymore. are you in a position that you can work on it and restore it, or is it set up the way it is as a duty gun? |
wtf is your problem? he gives a vague explanation and many of us done know what to think. What do you expect? Now it sounds like its something built off a parts kit when he gave us an explanation of the lower. |
Your response: "wow you could be in trouble". Is it inconceivable that this man has been issued this particular weapon? Why would you immediately assume that he is illegally in possession of said weapon? It's pretty sad when someone comes here with a legitimate question and they have to deal with nonsensical accusations and other assorted bunk. |
I... WAS... JOKING.... i forgot to add my  face..
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Alot of M16A1's of that vintage are "loaned" to Police Departments. Many of those are modified to semi only by removing the auto sear, or installing a block. They are still owned by the US Govt and no permanent mods can be made because they have to be able to be returned to original condition if Uncle Same needs them back. Yes, they are still MG's, as in once a MG always a MG. Many of these same rifles are modified by the PD with a different barrel, telestock, etc. to make them easier to handle from a patrol car. My take on it is the OP is a cop, who has a M16A1 that has been transferred from the Army to the PD and the PD has modified it as required for their use, and only "reversible" mods due to the DoA regs. Perfectly legal. They are basically "transferred" to the PD, but the Army still owns them. ETA: the M16A1 John Wayne used in "The Green Berets" was a Hydramatic. I was issued one as well in my younger days. GM made a fine M16A1. |
+1 I find GD a little rough around the edges if you know what ii mean. You should post this in the Retro, or AR forums next time. Sorry i didnt even know Hydramatic made M16's. BTW as a side note i work and live about 0.5 miles from the hydramatic plant here in Toledo Ohio. |
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Hydramatic thread from earlier this week. Proof the USN doesnt throw anything away. |
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Nice rifle...in great condition. Damn I wish I had money 
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The flagging is to mark it out of service The prior armorer may have destroyed the lower, you can also see his handywork on the casltenut. It looks like he used vicegrips on it
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It still looks better than alot of transferable M16s in civvie hands. The pin holes aren't all mangled and the finish is all there. If the previous guy didn't bust up all the insides you should be able to just slap a new upper on it and get a new castle nut, tube, and stock. Maybe get a new FA bolt-carrier group with improved extractor and a Colt extra heavy buffer to improve reliability over the original parts. |
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The last time it was assembled the buffer was able to creep out enough that the buffer retainer pin was able to unscrew itself and get struck by the bolt when the rifle was fired. How this was able to happen I don't know, but where the retainer pin screws into the lower the metal is slightly deformed and has visible fatigue. It is going back to the central cache. |
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Sounds like a PD Gunplumber filed off too much of the receiver extension, now the buffer retainer pops out. A new receiver extension and castle nut will fix that. You can get the trade discount at Brownell's if you register as LEO 10 82 A probably means was rebuilt at Anniston Army Depot, Alabama in Oct 82. |
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They were made in my hometown of Ypsilanti, MI. The Hydramatic plant is a real gem. Across the street is a plant that was the B-24 plant built by Ford, later it was a GM plant that built tanks on the side. The Corvair was GM's product during the early years, later it was the Caprice. |
I carried a Hydramatic no-trap-door stock in basic,1986,Ft Leonard Wood. |
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Everything appears to be in order now, internally. It passes all the function tests, but I'm told it wont cycle. (using frangible ammo, but that shouldn't make a difference) It's out of service for now, but I will take it to the range and see how it does.
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