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Posted: 9/18/2011 5:33:52 PM EDT
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I have been itching to buy a new AR lately. I bought a Del-Ton and playing with it for a while and liked it enough, but I want something different. I am looking at mostly Daniel Defense, C3 Defense, and even relatively new Heads Down LLC. All three of these are local companies here in GA. Are any of these manufactures' lower receivers able to used for a Class 3 auto rifle after you pay for the stamp? Or will I need to buy a special receiver? Who are manufacturer's that I can use to build my rifle? I am not planning to do the auto-switch right away, but if I can have the rifle finished and built and then put the auto-assembly in later I would.
Any advice? |
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You can not legally convert an AR15 receiver to full auto configuration. You need to buy a registered drop-in auto sear, or registered lightning link. If you got that kind of scratch, you might as well get an M16 receiver that is on the registry. Search the class III forums for info. |
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Yes I was looking to purchase an auto-sear down the road. I work in the industry, but haven't dpne a whole lot of research of class III besides the weapons I sell. And those are G18's that I have dealt with.
Then I pose this question. Beside dimensions and buffer tube diameter, what is the difference between a mil-spec receiver and commercial? Not all mil-spec receivers are all "low shelf" I assume.... |
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Quoted:
Yes I was looking to purchase an auto-sear down the road. I work in the industry, but haven't dpne a whole lot of research of class III besides the weapons I sell. And those are G18's that I have dealt with. Then I pose this question. Beside dimensions and buffer tube diameter, what is the difference between a mil-spec receiver and commercial? Not all mil-spec receivers are all "low shelf" I assume.... "Class III" is a type of dealer, not a type of firearm, but commonly misused. To host a DIAS the recevier needs to be both low shelf and close to "SP1 spec". To host an LL, receivers need to be "SP1 spec" or looser. Even those receivers which are low shelf are not necessarily "SP1 spec", but may be able to host a DIAS. Case in point, I run DIASes in Spike's Tactical lowers, but they will no properly run a LL without mill work to relieve some areas internally that are out of compliance with the SP1 receiver internal dimensions. Bushmaster and DPMS current production closely conform to original SP1 Colt specifications, and will happily run either a DIAS or LL. A milspec receiver is machined out for an auto sear. A commercial receiver, even one claiming to be "MILSPEC" is not machined to accept an auto sear or relevant fire control components, and varies from the M16, or AR-15 Model 01 dimensions in order to render the receiver a semi-auto receiver instead of a machinegun receiver. All semi auto receivers may, and most do, vary from the pattern laid down by the Colt SP1 and Sporter II receivers, for which most of the registered drop-in conversions were designed. |
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