AR-15 Build... Hoping to Approximate a Takedown Rifle?

[SteelPastor]

I found the Cry Havoc QRB system to quickly separate (and reassemble) the barrel and handguard from the upper.

Is there anything similar (and legal) to allow for a quick separation (and reassembly) of the stock/buffer from the lower?

Just looking for a way to get an AR-15 into a smaller case.

Thank you.

[damon1272]

[SVT-40]

The only thing I am aware of are the folding buffer tube systems, but in California they may not be legal. It would be very unsafe to fire with the buffer tube folded. But you could fire one round before the bolt carrier and bolt were blasted out of the upper. So I don't think the system would be California legal, unless it was used on a registered AW. It would also probably make your rifle under length.

[dousan]

The only thing I am aware of are the folding buffer tube systems, but in California they may not be legal. It would be very unsafe to fire with the buffer tube folded. But you could fire one round before the bolt carrier and bolt were blasted out of the upper. So I don't think the system would be California legal, unless it was used on a registered AW. It would also probably make your rifle shorter than 26".

You can fire a law tac folded. Bolt won’t fly away.
It will just be a single shot though, since it won’t fully cycle.
Not many options in ca overall I believe.

[morthrane]

And OAL is measured in the shortest configuration...

OP would be better off looking at barrel QD takedowns, where a 16" barrel will be roughly the same length as the upper+lower+stock.

[morrcarr67]

And OAL is measured in the shortest fire-able configuration...

OP would be better off looking at barrel QD takedowns, where a 16" barrel will be roughly the same length as the upper+lower+stock.

FIFY

[sigstroker]

The barrel and handguard comes off a SIG MCX fairly quickly, but it's still a few minutes to put it back together.

[tacticalcity]

A few years back there were several companies doing this. One I think was called Just Another Rifle or something to that effect. They made 9mm ARs. One model had a takedown barrel.

Other companies make just the take down barrel system and you have to build your own rifle.

If you can find a safe and reliable takedown barrel system it would be very nice combined with the LAW folding stock.

An SBR or AR pistol would fir in a small gym bag. No need for a specialized AR discrete carry bag. Any duffle would do.

Of course, you could do a precision rifle as well. Suddenly a regular backpack becomes an acceptable way to carry.

As for popping the pins all the time, it marks up the receiver. The area around the holes in the receiver wears completely off over time. Plus a 16" barrel has trouble fitting into a regular backpack or duffle with the upper receiver attached. So being able to go even more compact than popping the pins allows is tempting if possible.

Just saw this on Brownells...and it says it is in stock. They have other brands as well. This seems the best priced.

https://www.brownells.com/rifle-parts/barrel-parts/rifle-barrel-hardware/barrel-nuts/ar-15-dolos-takedown-kit-prod87852.aspx

Just saw this one Gunbroker.
DRD Tactical Aptus Rifle.
I like the functionality, but not crazy about the looks.

[SirThoreth]

I found the Cry Havoc QRB system to quickly separate (and reassemble) the barrel and handguard from the upper.

Is there anything similar (and legal) to allow for a quick separation (and reassembly) of the stock/buffer from the lower?

Just looking for a way to get an AR-15 into a smaller case.

Thank you.

With the Cry Havoc QRB, it doesn't seem to be able to be fired with the barrel detached, right? That should be legal here. I've been considering that myself for my first AR build.

Interestingly, it was the Cry Havoc system the Air Force chose for their new GAU-5A Aircrew Self Defense Weapon.

[tacticalcity]

With the Cry Havoc QRB, it doesn't seem to be able to be fired with the barrel detached, right? That should be legal here. I've been considering that myself for my first AR build.

Interestingly, it was the Cry Havoc system the Air Force chose for their new GAU-5A Aircrew Self Defense Weapon.

Being former USAF myself, that makes me want it now.

[Robert1234]

16" barrel is your limiting factor. Closer to 18" with the Cry Havoc adapter installed on it.

Why do you need the lower any smaller than that? Your case will need to be at least 18" long, no matter how small you make the lower/back of the gun.

And if you go the folding stock route, now you have a thick case, and it's still 18" long.

In a free state, SBRs and AR pistols are another option, but not in your state.

[tacticalcity]

16" barrel is your limiting factor. Closer to 18" with the Cry Havoc adapter installed on it.

Why do you need the lower any smaller than that? Your case will need to be at least 18" long, no matter how small you make the lower/back of the gun.

And if you go the folding stock route, now you have a thick case, and it's still 18" long.

In a free state, SBRs and AR pistols are another option, but not in your state.

AR pistols are still an option here. The Fanklin Armory CA7 is on roster, and there are pistol lowers in people's hands they will sell you...for a hefty markup. You can't go featureless with them. You have to use the new maglocks. But you can do them here.

That said a takedown precision rifle would be a cool addition to the collection. A 16" stainless medium profile barrel from a reputable brand would be my choice here. Very spy movie-ish.

[Robert1234]

AR pistols are still an option here. The Fanklin Armory CA7 is on roster, and there are pistol lowers in people's hands they will sell you...for a hefty markup. You can't go featureless with them. You have to use the new maglocks. But you can do them here.

That said a takedown precision rifle would be a cool addition to the collection. A 16" stainless medium profile barrel from a reputable brand would be my choice here. Very spy movie-ish.

And very cool.

My point was that you have to go pretty short on the barrel before you're shorter than a pistol lower, so why bother worrying about a folding stock. Plus a folding stock loses a little length at the cost of being twice as thick.

A basic takedown rifle that disassembles at the rear of the barrel would fit into an 18" case, assemble really quick, and be very cool. Going shorter with the lower doesn't add any benefit, and you end up with a thicker case.