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AR15.COM
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4/7/2010 9:21:52 PM EDT
i have a question about a full auto mac45 i see them sell for about 4500.  My question is there a reson i couldnt buy a raw ar forging and machine it just right to take the fire control group from the mac  to create a full auto ar15 for fairly cheap.. Or is it the receiver of the mac that is registered any info appreciated thanks
4/7/2010 9:25:59 PM EDT
[#1]
It is the receiver that is registered.
4/8/2010 3:19:43 AM EDT
[#2]
Quoted:
i have a question about a full auto mac45 i see them sell for about 4500.  My question is there a reson i couldnt buy a raw ar forging and machine it just right to take the fire control group from the mac  to create a full auto ar15 for fairly cheap.. Or is it the receiver of the mac that is registered any info appreciated thanks


yes there is a reason. because no new machine guns have been allowed for civillian consumption since 1986. the method of conversion wouldn't make any difference (unless you are using a LEGAL transferable conversion device which will be every bit as expensive as a transferable MG).

4/8/2010 6:17:21 AM EDT
[#3]
While the FCG isn't the registered part, there is precedent of taking an existing MG receiver and dropping into a new "host". The Stemple-based MGs from BRP Corp do this. I can't see a MAC-10 receiver in an AR-15 host receiver however.. it'd be huge! Not to mention the original MG part needs to remain unmodified so you're limited to pistol caliber rounds in the MAC-10.
4/8/2010 3:56:06 PM EDT
[#4]
ATF is a little uncool with some hybrids, particularly belt feds on FA lowers.
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