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FreeGuns4EverFreeGuns4Ever Member Posts: 3 ✭✭
edited April 2008 in Ask the Experts
Wouldn't you like to be ME?!?! I have a ?? I'm inheriting a BATFE registered GI full-auto sear (with the trigger group) which I will transfer to me on a form 4. I plan to install it in an AR15 lower and convert that weapon to Class III auto. My question is this - Which will be the best receiver that will allow the GI sear to 'drop in'? I know I'll have to get the other full auto accessories to actually make it a functioning weapon. I hear a Colt SP1 would work. Any suggestions on receivers?
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Comments

  • dcs shootersdcs shooters Member Posts: 10,870 ✭✭✭
    edited November -1
    A SP-1 would be your best bet, or mabe a "pre-ban" lower that is not "blocked".
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  • givettegivette Member Posts: 10,886 ✭
    edited November -1
    Are you refering to that flat, thin piece of metal, known as a dias? or a full functioning M16 auto sear (looks like a coil spring)? Can't help you on the dias, but I'll take you further if it's the one that needs to have a hole drilled into the receiver. (The coil-spring one). Best, Joe
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  • FreeGuns4EverFreeGuns4Ever Member Posts: 3 ✭✭
    edited November -1
    Yeah, it looks like a "C" with an arm extending on one side. There's a coil wrapped around the shaft and the wire end on both sides protruding away in both directions.
    My dad tells me its the GI sear with the M16 trigger group. Registered years ago and he has had it in his safety deposit box along with the paperwork.
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  • hunter7737hunter7737 Member Posts: 205 ✭✭✭
    edited November -1
    Colt SP-1
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  • cpermdcpermd Member Posts: 5,273 ✭✭✭
    edited November -1
    Sounds like a USGI M16 sear.
    You can't legally do what you are describing.
    It would require drilling and reaming the sear holes which is not legal unless you are a FFL/SOT.

    Is this it?JCBDIAS_01.JPG

    Or this, the piece in front? m16fcset.JPG
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  • hunter7737hunter7737 Member Posts: 205 ✭✭✭
    edited November -1
    What he describes is a DIAS (drop in auto sear). The thin flat piece of metal is a lightening link. Both are different from the AR auto sear.
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  • TxsTxs Member Posts: 17,809 ✭✭✭
    edited November -1
    SP1, but you'll also need an M16 bolt carrier.
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  • cpermdcpermd Member Posts: 5,273 ✭✭✭
    edited November -1
    Please reread his description.
    It is a M16 sear, Not a DIAS as I put in the first photo.
    I am guessing a TROLL.

    CP
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  • Aaron.Combs1Aaron.Combs1 Member Posts: 217 ✭✭✭
    edited November -1
    you are not able to do this. mechanicaly or physcially. the AR15 reciever is cut differently, and you cannot, repeat, cannot "drop in" an auto parts kit to make it an auto weapon. you would actually have to purchase an auto/burst lower that was machined to be so. AR15 lowers were not cut to be auto, and trying to "convert" an AR15 lower into a full auto lower so you can "drop in" parts to become auto, even if you went through a class III is very illegal. plus you would not be able to accomplish this unless you had many many years of master craftsman experience with metalwork, and the 110% correct measurements. my sugestion just spend the 12,000 for the full auto lower. youll spend alot less doing that then you will on cour costs, lawyer fees, and federal prison time.
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