Am I reading this right ?

[warwickben]

So a fellow NESer sent me a link to a trigger mod and a ATF letter . And a part of a ar15.com thread .
I can't see it being legal so I figure I'll post it here .

Gist is you buy the 3 shot burst trigger for a m16 and selector . Do a few mods, it fires when you pull the trigger and when you release it . when you rotate the safety to the "full auto position" ....
When you have it in semi it's acts normal.

I just can't believe the ATF would be ok with this in a normal non nfa fire arms .

Knowing how the m16 works/ timing etc .
I can see if your really fast on the trigger you could get a out of battery boom . Or hammer follow and a light strike when you release it .

 

[drgrant]

This smells like the kind of thing that sent David Olofson to prison.

-Mike

 

[massBRS]

seems like a bad idea based upon sketchy at best validation. try it out

 

[warwickben]

It came up in the thread on ar15 about Geissele comming out with a trigger like that stupid bump fire trigger ie two modes with the selector .


http://www.ar15.com/forums/t_1_5/16...A_2_BIG_OL__TITTIES___.html&page=15#i50419464



I'm mainly posting this cause it's smell real fishy . I'd try it out for shits and giggles if I new it was legal and the trigger wasn't near 100!

 

[browncoat]

Don't ARs have trigger return springs? If the trigger when released automatically fires another round, that would seem to be a problem. I guess the ATF considers pulling and releasing separate "functions" of the trigger?

 

[warwickben]

Don't ARs have trigger return springs? If the trigger when released automatically fires another round, that would seem to be a problem. I guess the ATF considers pulling and releasing separate "functions" of the trigger?

I believe it also helps keep pressure on the hammer besides just returning the trigger .

 

[dgrafton]

My factory 2 stage trigger in my M&P 15-22 PC started doing this. It was fun to shoot once I figured out what was going on.

I swapped it out for a RRA 2 stage that night.

 

[Another_David]

while the letter states that a firearm can FUNCTION that way and not be classified as a machine gun, it goes on to advise the reader that the mere "combination of parts in one's possession" can also constitute a machine gun.

thus, once those M16 parts arrive at your door, you're f'd. Secondly, the photo shows an intact M16 disconnector being used--that's not permitted. Same with the M16 selector--not allowed.

IIRC, the forbidden M16 parts are the trigger, hammer, disconnector, selector, and autosear.

 

[browncoat]

while the letter states that a firearm can FUNCTION that way and not be classified as a machine gun, it goes on to advise the reader that the mere "combination of parts in one's possession" can also constitute a machine gun.

thus, once those M16 parts arrive at your door, you're f'd. Secondly, the photo shows an intact M16 disconnector being used--that's not permitted. Same with the M16 selector--not allowed.

IIRC, the forbidden M16 parts are the trigger, hammer, disconnector, selector, and autosear.

Even without an M16 lower into which the parts could be installed? ​sigh

 

[drgrant]

Even without an M16 lower into which the parts could be installed? ​sigh

The fire control parts thing is somewhat debatable, except for the sear itself, but Olofson case is a perfect example of how BATFE can act like major league douchebags about it. For example I don't think Olofoson's gun had a sear in it, or even a sear pin or hole, but he had a hodgepodge of fire control parts in the lower which caused the gun to lapse into bursts and then jam, and despite the fact that it resulted in the gun being a terrible attempt at a "machine gun" they still arrested him for it and sent him to prison.

-Mike
See also:
http://gunowners.org/op0850.htm

and

http://en.wikipedia.org/wiki/United_States_v._Olofson