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9/12/2015 10:15:56 AM EDT

I read most everything I could find and I have a few basic questions.
I think I am going to build a couple 22LR rifles.

I have some spare slab side and A1 uppers, a couple pencil barrels and small parts.
Is the 1/9 better than 1/7?
I got some conversion kits for the 22LR when I bought some complete uppers a few years ago for free.

The first question I have first is do I need a buffer and spring in the stock?
Is a gas tube needed?

More questions to follow.

Thanks,
Ron
9/12/2015 10:18:17 AM EDT
[#1]
Quoted:

I read most everything I could find and I have a few basic questions.
I think I am going to build a couple 22LR rifles.

I have some spare slab side and A1 uppers, a couple pencil barrels and small parts.
Is the 1/9 better than 1/7?
I got some conversion kits for the 22LR when I bought some complete uppers a few years ago for free.

The first question I have first is do I need a buffer and spring in the stock?
Is a gas tube needed?

More questions to follow.

Thanks,
Ron
View Quote


For 22LR there is no buffer or spring needed
9/12/2015 10:21:43 AM EDT
[#2]
.22lr doesn't need a gas tube either.
9/12/2015 10:32:05 AM EDT
[#3]
1:9 would be better than 1:7, but it is still way more twist than is needed for 22.  I'd seriously consider a dedicated barrel.
9/12/2015 10:48:39 AM EDT
[#4]
You should get a dedicated 1:16 twist barrel for a .22 lr.  Your accuracy will suck in general if you use 1:9 or 1:7.
9/12/2015 10:52:08 AM EDT
[#5]
Here is the barrel you need.

http://www.midwayusa.com/product/386739/cmmg-barrel-ar-15-22-long-rifle-m4-contour-1-in-16-twist-16-chrome-moly-matte-with-chamber-adapter
9/12/2015 10:57:38 AM EDT
[#6]
1:9 barrel would be perfect if you cut it down to 4 inches and use it as a pistol or sbr. I am looking at one now from a fellow arfcommer that has some for sale.

ETA Here is his thread on the actuall barrel review
9/12/2015 12:48:38 PM EDT
[#7]
Thanks for all the response.
The rifles will be for plinking with my grandsons.
I have four grandsons.

I am trying to use up some spare parts that I already have so it looks like I will be using the 1/9 barrels.
I have enough spare parts to build 4 or 5 of the retro looking 22LR's.
Maybe even a couple of the early A2 carbines.
I will start digging out parts next week.

Thanks again,
Ron



9/12/2015 3:49:03 PM EDT
[#8]
Sell your current barrels and get some dedicated .22LR barrels. Along with the incorrect twist rate (unless shooting really heavy projectiles), it's also the wrong bore size and will have some freebore with the chamber adapter before actually getting to the rifling.

It seems though that you have everything needed to complete an upper (besides aesthetics) so you can always put one together first to see if you like the accuracy before making 4 or 5.
9/12/2015 4:08:25 PM EDT
[#9]
Get a DMPS upper and be done with it
I have a DMPS and JPNC22 upper as my competition rifles
both run the Nordic bolt and are 100% reliable
10/23/2015 3:16:37 AM EDT
[#10]
Just buy the S&W M&P 15-22 and build it to your hearts content.
10/23/2015 8:40:34 PM EDT
[#11]
I just built a dedicated .22 rifle and I'll tell you, for what it's worth, what I would have done differently:

A) although I enjoyed the process I didn't come out ahead bargain shopping for components. I could have bought a slightly used CMMG upper on the EE for what I spent.

B) go to the taccom website and buy the barrel/collar combo for like $109. Seems to be the best deal going if you are set on building yourself. This is not what I did, and I should have.

Good luck
10/24/2015 3:51:20 PM EDT
[#12]
Quote History
Quoted:
Just buy the S&W M&P 15-22 and build it to your hearts content.
View Quote


I must agree. For the manual of operations to work, as in bolt hold open on empty, you will want to either just go with the 15-22 or get the S&W mags with the BooneyPacker adapter that makes them work with an AR conversion.

A good 10-22 and 15-22 will make them smile. Fussing with a bunch of jams and such isn't the way to go to teach trigger control and safety to kids.

I used the Magnum Research 10-22 with the carbon bbl and collapsible stock to cover the growing ones. Then switched to better stocks as they got more skilled.

When they can handle more weight, you can hand them an AR conversion.

Edit: I include a good quality target bolt action with good trigger in the plan, and alternate between scope and apperture sights to teach. They pick it up real fast and some will even show competition potential.
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