"chin stock" for AR pistol practical?

First person to post a video of what happens when you plant the ARs barrel into a solid object while using one of those wins the internets.

I would be interested in measuring how much sound energy is transmitted through the bones.

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This is an interesting point along with your "float" comment. While there is a nice cartilagenous disc buffering the joint and allowing for lateral movement along with up and down (hence the float), the mandibular fossa is still pretty delicate. It is the skull side of the joint into which the mandibular condyle hinges. Additionally, nearly 30% of all mandibular breaks occur in the top portion of the ascending ramus that includes the mandibular condyle. http://emedicine.medscape.com/article/870075-overview However, these folks have it that 36% of jaw fractures are at the condyle. http://www.bcm.edu/oto/index.cfm?pmid=15476

So you have the 'floating' joint but it is one that is fairly easily damaged and is a joint not evolved to handle repetitive impacting from the front of the jaw, but instead to handle up and down and some rotary action for mastication (chewing). So the chin stock would actually be imparting forces to the jaw contrary to its evolution to handle. I see TMJ in store for many of the shooters of this technology.

Yes, I have seen people shoot guns off their chins as well. I have never seen a person do it without a good bit of bracing. You would not want to let somebody else rest the butt of their AR15 against your chin and pull the trigger on you unexpectantly, but you can bet some yahoo will end up doing that to themselves and they are going to get hurt. Teeth will get broken and TMJ damage will occur.

As a long time endurer of TMJ resulting from a broken mandibular condyle, I can assure everyone here that TMJ is not your friend.

I need to cash in on this cash cow.

I'll start my R&D on my prototype tomorrow. It's called the "TestiStock".

I'll gladly send a free prototype if you sign a disclaimer and film the testing.

It's been done. I don't have the pic here, but I'll try to post it tomorrow.

I would rather have a harness that allowed it to be shot from the chest. With a high-mounted red dot you could actually rig the AR pistol on the upper chest. Like a bad sci fi flick. But it could actually work! The chest absorbs energy a lot better than the poor shoulder bone. In fact of all the joints to shoot off of, the shoulder has to be among the worst you could choose. It's a very complex arrangement and highly prone to tears and injuries. It would be better to fire off a strong, simple joint like the hip.

Clearly it should be tied to the head of a shark. Sharks. With friggin' ARs on their heads.

Or maybe helmet mounted, with a lever on the chin that actuates the trigger. Chewing a piece of hubba-bubba would be like going full auto.

Who's going to bump-fire it with their tongue?

I'll start my R&D on my prototype tomorrow. It's called the "TestiStock".

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And here it is!

Folks, you are all missing the point: Because it's for an AR, it can do ANYTHING!! Really, ANYTHING.

haven't read all the posts here,but i gotta say-STUPID!!!!!!!!!!!!!!!

No.

I have no desire to even try this device. Not only does it look painful but also ridiculous.

Now they just need a trigger attachment that fires when the shooter rolls the letter R off their tongue. Go on, try it...... even better than a bumpfire for anyone who is proficient in Spanish.

When I first seen it all I could think of is "Hey honey! I've found a new way to knock myself out cold! Now if you will hold my beer and watch this!"

herkyguy said:

Now they just need a trigger attachment that fires when the shooter rolls the letter R off their tongue. Go on, try it...... even better than a bumpfire for anyone who is proficient in Spanish.

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Great. Now I gotta learn to motorboat my AR.

Oh .. my.. god..

Sam you owe me a new spleen. I think I ruptured mine laughing.

"DUDE I just bought a new set of Testi-Sticks and I can't wait to try them out at the range"....

{facepalm}

I think Sam1911 put it best in the first post. Good execution, bad original idea.

I think it's definitely outside the box, and may rekindle some research into alternative setups.


Any new (ya probably isn't new) idea to make things go bang is always worth a read.

Looks painful

First person to post a video of what happens when you plant the ARs barrel into a solid object while using one of those wins the internets.

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What would that prove? I'm assuming your suggestion is to put the muzzle end of the barrel flat into a wall and shoot... thats just dumb, even with a normal AR.

I have no opinions on this chin stock as of now without testing it myself. Seems like just another idea for an AR pistol (i'm building one but will not be using this chin stock).

The reviews and responses from this video seems positive. One lady even has TMJ and she said it did not bother her.



The device is way too expensive though. that will probably be one of its other downfalls. You can buy a ton of ammo for that price, or just go ahead and get a SBR tax stamp.

Watching the head flex back makes me really doubt the stabilizing effect they're claiming.

I've shot a couple AR pistols with thick foam "socks" over the buffer tube ... frankly the 5.56mm recoil pulse is so soft and light that you really don't need a stock on one.

we did in the army, even on another part of the body

I like the prone shooting - not. I can shoot most any gun with a single shot, but note the amount of rock the gun goes through.

I see Karen has TMJ. Great, she likely won't feel any discomfort until later. She doesn't think she will, but we don't know, do we?

I like how people were able to shoot it well, getting the same sight picture, as if that was so critical for single shots or the short distance multi-shots. The nice thing about the Aimpoint Micros is that they are parallax free. You don't need the same sight picture to hit the target over and over or need the same hold. That is the beauty of being parallax free.

The egg example was right out of PT Barnum. Funny how the host's head didn't move at all when he fired the gun, but everybody else's heads were bouncing all over the place during recoil. He is obviously an experienced shooter and fully locked his arm/body muscles, bracing properly. Old Bill at 3:36 who said there was no recoil would have had egg all over his face.

Yes, the chin stock can be used without harm, if you know what you are doing and don't let it beat you around.

I want to see the vid where the person catches on of those barricade and drives the chin stock into their face, something that doesn't happen with a traditional stock.

I have a high stress job/life, grind my teeth at night, and suffer from TMJ.

I'll skip the added stress, thank you very much.

For those with an AR pistol in non-friendly SBR states, try a sling that loops around / under your shoulders and puts the firearm at an intersection of the triangle it forms. Push OUT on it firmly. Gives a rock solid shooting position.

justice06rr said:

What would that prove? I'm assuming your suggestion is to put the muzzle end of the barrel flat into a wall and shoot...

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Uh no.

What I'm suggesting is that sometimes when you are on the move, unexpected things happen and you might end up planting the business end of your rifle into something. Annoying if you have the rifle mounted at the shoulder.. If you have it mounted on your face when that happens though...

I don't get it, why not just get a full sized AR??

BP Hunter said:

I don't get it, why not just get a full sized AR??

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^^^Now that's just crazy talk.