Assisted Bumpfire

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macadore

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If one ran a cord through the trigger guard of an ak or ar pistol, tied the cord in a circle, looped the cord over the shoulder and used it to bumpfire the pistol, would that be illegal? I seem to remember reading several years ago that it was?
 
I think the most common and effective way is to use a rubber band looped around the trigger and front of the magwell. The legality of this method is cloudy at best however.
 
That's correct. Because it allows you to fire more than one shot per manual trigger pull, it counts as a machine gun when attached to the rifle. So if you just have a shoestring laying around, in the same house as a firearm, the ATF isn't gonna haul you off to jail, haha
 
He's asking a different question. His model isn't using the string as an automatic trigger-puller like the case you've cited, he's just using it as a sling. As far as I know, slings are still legal.
 
Oh, I see. Yeah, sure, you can use a sling on a pistol, but if I were you, I wouldn't run it through the trigger guard. There are other options out there to attach slings. Plus, it'd look less fishy to anyone who might assume you were using it as the aforementioned "shoestring machine gun". Additionally, there's the safety issue... having anything inside the trigger guard except your finger *when you're ready to shoot* is asking for an accidental discharge.
 
Though I agree with you on the safety reasons for avoiding this, you'd be hard pressed to call it the same thing as the infraction cited in the shoestring machine gun case. With a pistol, it'd be pretty much impossible unless it was a pistol built on a rifle action with the proper bolt (m1 carbine enforcer, 10-22 charger, etc.)
The shoestring machine gun is a pretty specific setup, requiring a pretty specific type of rifle.

shoestring-machinegun.jpg
 
Didn't the BATF rule that 14" shoestrings were machine guns? Would making a sling out of shoestring make it a machine gun?

Laws are stupid.
 
http://www.youtube.com/watch?v=yIJAEsVXO9Q

Here's a good example of a properly mounted sling on an AK pistol and a guy bump-firing like the OP mentioned. This is how it's done, no shoe-string or shoddy para-cord sling. OP will probably have to drill the back of the receiver to mount a sling stud. No big deal.
 
However, note: he has a vertical fore grip, making it an AOW (illegal to put vfg on a pistol without tax stamp). The video poster notes in the comments that it isn't registered, and he took the grip off, supposedly.
 
Didn't the BATF rule that 14" shoestrings were machine guns? Would making a sling out of shoestring make it a machine gun?
Click to expand...

Yes, for a while. The original letter said it was ATF's opinion that ALL 14 inch shoestrings were machine guns :)

2 years later they thought maybe that wasn't such a good idea and reworded it such that they were only machineguns if attached to a rifle. Ya think? :)

Wasn't law though, just an ATF opinion letter from Tech Branch.
 
Anyone seen this yet?

Pricey as heck....
Click to expand...

Wow.... that's the exact same as the Akins Accelerator stock... how did they manage to get the ATF to approve it? I guess it doesn't matter anyways, cause the moment they start selling well, the ATF will say, "Oh, just kidding, it really is a machinegun and you're screwed." :rolleyes::cuss:
 
Wow.... that's the exact same as the Akins Accelerator stock... how did they manage to get the ATF to approve it?
Click to expand...
The AA had a spring as part of the mechanism, while the other stock does not.

If ATF does reverse themselves in a few months and declare that it's a machine gun conversion device, those folks are in a world of hurt since they hold a Type 06 FFL and not an 07 w/ SOT.
 
The machine gun in the picture il_10 posted did not rely on "bump firing". The device in his picture allowed the gun to fire in a full automatic role when the metal loop was pulled and held to the rear. It did not rely on individual pulls of the trigger (by the user) which is what bump firing does.

While it was a clever device, would any of you be making fun of it had it been made of a piece of steel, or some other product that is more technologically advanced and specifically constructed for the exact same purpose??
 
As has been noted, the Akins Accelerator used a spring to return the action into battery in a sliding stock - so the shooter did not need to pull the trigger for each shot, just exert a moderate amount of pressure on the trigger and the gun would run.

The Slidefire stock, on the other hand, relies solely on the shooters off hand to push the action back into battery - with no modification to the action of the firearm the ATF has ruled this is not a machinegun. We'll see if they try to amend their definition further at some point in the futute based on rate of fire - but that is how things stand for now.

I know a fellow who has a semi M2HB with a crank system on the trigger - he can run it at over twice the RPM rate of a full auto M2! Nobody said the laws have to make sense...
 
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