AR 22's hand guard and barrel lengths the look you desire

[redtazdog]

I see some are trying to figure out what barrel length will give the look with
what length barrel.
This will help with the short barrel builders
.
.
AR dedicated 22 barrel length and hand guard fit for SBR and Pistol builds
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The muzzle threads will be at the end of a hand guard with

5.5" barrel and a 4.25 hand guard
8.25" barrel and a 7" hand guard
10.25" barrel and a 9" hand guard
13.25" barrel and a 12" hand guard

add .500 for exposed threads ouside of the hand guard if needed.

Some hand guards are .25 to .50 longer, add barrel length to get the look you like.
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For a 5" suppressor to be exposed aprox 1" outside of a hand guard you will need.

4.5" barrel and a 7' hand guard
6.5" barrel and a 9" hand guard
9.5" barrel and a 12" hand guard

Some hand guards are .25 to .50 longer, add barrel length to match if needed.
.
This is a 4.5" barrel
If you notice only 3.5" of the barrel is from the front of the reciever where the hand guard would start to the muzzle,
this leaves 1" inside of the reciever in front of the hand guard when it is on.
Example
If you have a 6.5" barrel - 1" inside the reciever in front of where the hand guard would start then you will
only have 5.5" of barrel under the entire hand guard from one end to the other.
Add the can length of 5" to the barrel length of 5.5" then deduct the muzzle thread length of lets say .400
you then end up with 10.1" of barrel and can.
With a 9" hand guard you can will be exposed 1.1" and that is plenty to get a grip on.
I have build many with only 1 inch a can exposed and its enough to get a good grip.

.
some example pictures
.
A 4.5" barrel and a 7" hand guard with a 5" can

A 9" barrel and a 7" hand guard with exposed threads

A 5.5" barrel with a 7" hand guard and a long flash hider

and with a 5" can

A 8" barrel with a 7" hand guard with the threads hidden

and with a 5" can

A 13" barrel and a 9" hand guard

and with a 5" can

A 4.5" barrel and a 7" hand guard with a 5" can

[edpdx]

I am working on this build. I have:

Spikes 9mm upper
CMMG® Stainless Steel AR - 15 / M16 .22 Conversion Kit
4.5" barrel of redtazdog manufacture
ST-22 Pistol Plug (ST2P100)
Complete lower

My first pistol build- first time using a 9mm upper.Question: Do I need any other parts not listed- like a different hammer or other lower parts? Will the above conversion kit need a different charging handle. What else is unique parts for this?

[strobro32]

Thanks again RTD. You're always very helpful.

[redtazdog]

CMMG website doesnt show the 22 kits with the dedicated collars for sale but they have them.
Many people dont know that you can get a cmmg 22 kit with the dedicated collar if you call and ask them when you order the kit.
The 22 kits with the all steel 223 chamber adapters can be converted into a dedicated collar.
The 22 kits with the brass bushing around the 223 chamber adapter like these can not be converted to a dedicated collar


Most all of the 22 kits need a smooth face hammer not a notched hammer as the notch tends to hang up on the bottom of the 22 bolts.
Smooth face like the bottom hammer is good and top hammer with the notch is bad.

Its seems all charge handles work except the $75 -$95 gas buster
A floating hand guard/rail, if it fits a AR receiver and doesnt need to attach to the barrel other than the barrel nut then it will work.
If your doing a long rifle barrel with the profile needed for a hand guard to attach too then any hand guard should work.

I am working on this build. I have:

Spikes 9mm upper will work and so will any other upper
CMMG® Stainless Steel AR - 15 / M16 .22 Conversion Kit will work if it has a collar or a all steel 223 adapter that can be converted into a collar
4.5" barrel of redtazdog manufacture will work with a dedicated collar or converted 223 adapter
ST-22 Pistol Plug (ST2P100) these work good
Complete lower with a smooth face hammer will be more reliable to work

My first pistol build- first time using a 9mm upper.Question: Do I need any other parts not listed- like a different hammer or other lower parts? Will the above conversion kit need a different charging handle. What else is unique parts for this?

[redtazdog]

A 4.5" barrel seems to be the magic length to keep most hi velocity bulk pack ammo subsonic.
.

[redtazdog]

bump for the new guy's to find

[Trevor2011]

I would love to build something like that. But damn that's another 7 months and 2 weeks wait lol.

[biznich]

Hi Redtazdog. That picture of all those barrels is making me drool. Do you know where I might be able to get a 4.5" .22lr barrel?

[xjedix]

Such a tease!!

Any word on those barrels?


-Derek

[redtazdog]

Such a tease!!

Any word on those barrels?


-Derek

No barrels yet
I found out from my barrel blank supplier that they rampped up on 223 barrel blanks
and put most other caliber blanks on the back burner several months ago, or like last year when the buying frenzy started.

[redtazdog]

Hi Redtazdog. That picture of all those barrels is making me drool. Do you know where I might be able to get a 4.5" .22lr barrel?

I used to have many at any time until the buying frenzy started.
Try beyerbarrels.com or find a cmmg barrel and have it cut and threaded the length
you want.

[deadeye99]

I have a question I hope isn't stupid. If you use a dedicated 22 barrel do you get rid of the 223 chamber adapter? I have a 30 year old attchison?sp conversion kit and the adapter seems to build up lead and make it inaccurate. Otherwise it is pretty reliable. I have a registered receiver so barrel length isn't an issue and i have a ss sparrow in jail so I have time to do a proper build. Thank you for the great pictures and ideas, Bob

[yamatitan]

I have a question I hope isn't stupid. If you use a dedicated 22 barrel do you get rid of the 223 chamber adapter? I have a 30 year old attchison?sp conversion kit and the adapter seems to build up lead and make it inaccurate. Otherwise it is pretty reliable. I have a registered receiver so barrel length isn't an issue and i have a ss sparrow in jail so I have time to do a proper build. Thank you for the great pictures and ideas, Bob

Yes you loose the chamber adapter.

[deadeye99]

Thank you. I am looking now and I see the seperate collar that is available. These cmmg kits look identical to my attchisson ciener kit. Now I''m wondering if I could just buy the collar and use the kit I already have. Anybody know if cmmg bought them out or if the specs are the same? Redtazdog, as I stated before I have some time. Do you know when you might have barrels again or should I order the beyer? Thanks all. Bob

[deadeye99]

Here is what I ended up building so far. Thank you guys for the help and ideas. The 5.5" flash hider is taking the place of my Sparrow till my stamp comes back. Just need an optic. And yes it is a registered receiver and full auto. Bob

[LeftEyeMike]

Where are you ball finding these short barrels?

I would love to build a 22sub upper for my SBR.

[deadeye99]

Beyer barrels or I used http://www.taccom3g.com/AR15_PISTOL_BARRELS.html. His barrels come with the collar for 100 bucks. Bob http://www.taccom3g.com/AR15_PISTOL_BARRELS.html

[mikeith]

My first post and contribution to the forum

This is a cmmg 6.5" barrel and a Noveske 9" NSR rail.
(i just sold the barrel to buy one of your 4.5" ones and replace the rail with a 7" NSR rail

Suppressor is an AAC element 2

[wacki]

I am working on this build. I have:

Spikes 9mm upper
CMMG® Stainless Steel AR - 15 / M16 .22 Conversion Kit
4.5" barrel of redtazdog manufacture
ST-22 Pistol Plug (ST2P100)
Complete lower

My first pistol build- first time using a 9mm upper.Question: Do I need any other parts not listed- like a different hammer or other lower parts? Will the above conversion kit need a different charging handle. What else is unique parts for this?

Interesting. Do any of the .22 LR uppers need a buffer tube and spring? I just pulled apart my spikes tactical dedicated .22LR upper and i'm not sure it needs a stock. This is a great short term fix while the rest of my stamps come in. I never liked the pistol tubes.

[redtazdog]

I am working on this build. I have:

Spikes 9mm upper
CMMG® Stainless Steel AR - 15 / M16 .22 Conversion Kit
4.5" barrel of redtazdog manufacture
ST-22 Pistol Plug (ST2P100)
Complete lower

My first pistol build- first time using a 9mm upper.Question: Do I need any other parts not listed- like a different hammer or other lower parts? Will the above conversion kit need a different charging handle. What else is unique parts for this?

Interesting. Do any of the .22 LR uppers need a buffer tube and spring? I just pulled apart my spikes tactical dedicated .22LR upper and i'm not sure it needs a stock. This is a great short term fix while the rest of my stamps come in. I never liked the pistol tubes.

If the 22 kit/bolt fits in the upper good then there is no need for a buffer tube, buffer or spring.

[wacki]

CMMG website doesnt show the 22 kits with the dedicated collars for sale but they have them.
Many people dont know that you can get a cmmg 22 kit with the dedicated collar if you call and ask them when you order the kit.

is that the best option? a dedicated collar?

[redtazdog]

CMMG website doesnt show the 22 kits with the dedicated collars for sale but they have them.
Many people dont know that you can get a cmmg 22 kit with the dedicated collar if you call and ask them when you order the kit.

is that the best option? a dedicated collar?

If you plan to use a real 1:16 twist 22 Lr barrel with the correct bore size for accuracy yes.
If you plan to use the 22 kit/bolt in your AR with a 223 barrel then get the kit with the 223 adapter,
accuracy wont be as good but you will still have fun shooting.
A 22 kit with a 223 adapter slips in the chamber of a barrel, the collar slips on the dedicated barrel
like this