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Old May 25, 2024, 07:17 PM   #1
Tool
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The shortest AR-15s with a 16-inch barrel

What are the shortest AR-15s that meet these two criteria:
- Must have a barrel that is 16 inches or longer, and
- Must have an overall length of over 26 inches?

Last edited by Tool; May 27, 2024 at 08:22 PM.
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Old May 25, 2024, 07:51 PM   #2
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Not going to happen. 30in is about as short as you are going to get with the stock collapsed.

Barrel, 16in
upper receiver 7in
buffer tube 7in

Only way to get it shorter would be to use a folding stock system like the LAW but they are expensive ($200), can induce reliability issues, and you cannot fire the gun with stock folded. On top of that they will only save you about 6 inches, getting you down to 24. https://www.primaryarms.com/law-tact...ar15-and-ar308
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Old May 25, 2024, 09:11 PM   #3
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Quote:
Originally Posted by Shadow9mm View Post
Not going to happen. 30in is about as short as you are going to get with the stock collapsed.

Barrel, 16in
upper receiver 7in
buffer tube 7in

Only way to get it shorter would be to use a folding stock system like the LAW but they are expensive ($200), can induce reliability issues, and you cannot fire the gun with stock folded. On top of that they will only save you about 6 inches, getting you down to 24. https://www.primaryarms.com/law-tact...ar15-and-ar308
Sounds like Ruger AR-556, Colt 6920, LWRC IC-DI 556, and Daniel Defense V7 are some good choices at around 32 inches with the stock collapsed.
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Old May 26, 2024, 06:46 AM   #4
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Quote:
Originally Posted by Tool View Post
What are the shortest AR-15s that meet these two criteria:
- Must have a barrel that is 16 inches or longer, and
- Must have an overall length of less than 26 inches?
So the ATF requires a minimum OAL of 26” which makes me curious how this applies to an AR due to the adjustable stock. Does it mean that with the stock fully collapsed it must be at least 26” OAL?
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Old May 26, 2024, 07:52 AM   #5
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keep in mind, Colt, Wilson Combat, and a few others, have "sear blocks" in their lower receivers. basically they leave extra metal in places to make it hard to install an machine gun parts which would make the gun full auto. This can interfere with some aftermarket cassette type triggers.
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Old May 27, 2024, 12:43 PM   #6
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AR upper receivers are too long to get you sub-26" and still have a fireable/functional firearm and a fixed stock.

The only usable exceptions are bufferless systems, like the CMMG Dissent. But then you have to argue whether those are still AR15s, or they're AR180 derivatives.

You still have to have it configured as a pistol, unless your OAL measurement is acceptable with the stock folded.
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Old May 27, 2024, 08:24 PM   #7
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My apologies for the typo. I meant to say that must have an overall length of at least 26 inches.

Sounds like the shortest legal rifle is about 30 inches long. What models have an overall length of about 30 inches long?
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Old May 27, 2024, 09:15 PM   #8
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Just about every single one that has a 16in barrel and a collapsing/adjustable stock. With most the last 2 stock positions adjust to the a1 and a2 length of pull. Or you could get one with an a1/a2 stock like the dissipator modeks from PSA, which i personally think are pretty cool. https://palmettostatearmory.com/psa-...tor-rifle.html
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Old May 28, 2024, 02:35 AM   #9
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That's a big typo, especially to not notice after 4 replies talking about such.
But it does change things substantially.

You are now in the territory of, "every 16" barreled AR ever made."
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Old May 28, 2024, 05:58 AM   #10
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Just remove the muzzle device and you’ll get pretty close to 26”.
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Old May 28, 2024, 11:10 AM   #11
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Daewoo K1A1 (TOP OF THE STACK)
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Old May 30, 2024, 08:43 AM   #12
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What you are looking for is a K&M 5.56 Bullpup:
Specs:
Caliber: 5.56mm/.223
4.0lb to 5.0lb adjustable trigger pull with patented trigger linkage. (Something the bullpup industry is not known for )
Barrel Length: 17.5"
Barrel Twist: 1:8 Nitride treated is standard or a 1:9 on request.
Rail height to center bore 2 1/8"
Overall Length: 26.25" (Without Flash hider)
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