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AR-7 .22 Pistol
Weaponeer Forums : Home Build Projects

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  dcorb

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Posted: September 30 2008 at 8:17pm | IP Logged Quote dcorb

I decided I need to build a .22LR pistol. I still have my 10/22 pistol on the back burner. And it is not like I do not have any other projects to work on.

The other day I saw a AR-7 mag for sale. I thought I could use one of those for something. So here it goes, I ordered an AR-7 stripped bolt (they were sold out of the complete ones) and a magazine. I hope to craft the firing pin, extractor and guide rods. This will be a tube gun (hope to find some tube to fit bolt). I will make a magwell from scratch. Still not sure on FCG, AR15 comes to mind, but not sure if the springs will be too stiff.
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  gundoctor

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Posted: September 30 2008 at 9:39pm | IP Logged Quote gundoctor

You have more projects than the Department of Housing and Urban Development.
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  dcorb

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Posted: September 30 2008 at 10:03pm | IP Logged Quote dcorb

You can never have too many projects. I have also been tossing around the idea of a .22 Sten.
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  nmcbone

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Posted: October 01 2008 at 6:32am | IP Logged Quote nmcbone

 It's the beer factor: more projects, more beer!!!!
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  dcorb

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Posted: October 01 2008 at 7:02am | IP Logged Quote dcorb

nmcbone wrote:
 It's the beer factor: more projects, more beer!!!![IMG]smileys/smiley36.gif" />


I like your thinking!
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  dcorb

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Posted: October 04 2008 at 8:44pm | IP Logged Quote dcorb

My bolt arrived today.

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  dcorb

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Posted: October 04 2008 at 8:46pm | IP Logged Quote dcorb

They sent the bolt and magazine in separate packages. Guess I have to wait until Monday to receive the magazine.
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  jacattak

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Posted: October 04 2008 at 11:53pm | IP Logged Quote jacattak

One question.....

WHERE DO YOU GUYS FIND ALL THESE GREAT INDIVIDUAL PARTS ?!?!?!?

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  dcorb

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Posted: October 05 2008 at 8:30am | IP Logged Quote dcorb

jacattak wrote:

One question.....


WHERE DO YOU GUYS FIND ALL THESE GREAT INDIVIDUAL PARTS ?!?!?!?



I got this from Numrich Gun Parts Corp.
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  dcorb

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Posted: October 05 2008 at 9:46am | IP Logged Quote dcorb

I checked around for some 4130 DOM tube for the receiver. This is what I found:


Dimensions: 1" OD - 0.870" ID - .065" Wall
I think the wall thickness of this one is a little thick.


Dimensions: 1-1/4" OD - 0.874" ID - .188" Wall
This one is the little thick.


Dimensions: 1-5/8" OD - 0.875" ID - .375" Wall
This one is crazy thick.


I will order a piece of the .065 and .188 and see which one I want to work with.
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  dcorb

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Posted: October 05 2008 at 10:01am | IP Logged Quote dcorb

Some bolt measurements:

Bolt diameter:      0.866
Bolt guide holes:   0.240
Firing pin slot:    0.090
Extractor slot:     0.090
Hammer slot:        0.180
Bolt handle hole:   0.306



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  dcorb

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Posted: October 05 2008 at 1:01pm | IP Logged Quote dcorb

Still not sure what I want to use for the FCG. I might order the orginal parts to save the time it would take to scratch build them. How is a picture from a patent document of the AR7 FCG.

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  Inabadhood

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Posted: October 06 2008 at 9:40am | IP Logged Quote Inabadhood

gundoctor wrote:
You have more projects than the Department of Housing and Urban Development.
HAHA!!!!  That's a great one!  I LoL'd! 

I'm not so sure I'd trust the original AR-7 FCG, Dcorb.

I've shot 3 different AR-7's over the years (One Henry style 'Survival' AR-7, and two original style AR-7's), and not a single one managed to fire through a complete magazine without either jamming, or going full-auto! 

I'm not sure if it's a Magazine design problem, Bolt design problem, or a Fire Control Group problem...  Every single one would fire a number of rounds (sometimes Semi-Auto, sometimes Fully-Auto), then jam!

My typical experience was it'd fire a few rounds semi-auto, then a fail to feed.  Fire a couple more rounds, and a fail to extract. Fire a couple more rounds, a fail to eject...  Load the next mag, fire a couple rounds, and *BRRRRRAAAAP*!  It'd fire full auto until either the mag ran out or the gun jammed...

Finicky little buggers, but I'm sure you can work your magic to make your own 22 pistol run a bit more smoothly!



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  dcorb

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Posted: October 06 2008 at 7:55pm | IP Logged Quote dcorb

I might just mod an AR15 fcg, heck the parts would be cheaper.

This is a rough idea of what I want to build.

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  Inabadhood

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Posted: October 08 2008 at 9:11am | IP Logged Quote Inabadhood

I'd be willing to bet your AR-15 trigger mods and your FCG Tray jig setup would likely work better than the original AR-7 FCG.
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  grybka50

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Posted: October 09 2008 at 4:00pm | IP Logged Quote grybka50

I may be wrong, but I think but I think the beer "quote" should be "more beer more projects" not "more projects more beer" just makes more sense to me that the more beer comsumed, the more projects that would come to mind. 
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  hawcer

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Posted: October 09 2008 at 4:37pm | IP Logged Quote hawcer

grybka50 wrote:
I may be wrong, but I think but I think the beer "quote" should be "more beer more projects" not "more projects more beer" just makes more sense to me that the more beer comsumed, the more projects that would come to mind. 

I do not agree....I don't drink at all and I can come up with multiple different project ideas daily.Beer would actually slow me down quite a bit,down to the point where I might actually finish something that I start in a timely manner without going off on some other hairbrain idea.Maybe I should start drinking...



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  dcorb

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Posted: October 10 2008 at 5:22pm | IP Logged Quote dcorb

It always feels good to come home and find a package on the step. One of my metal orders arrived. A copper flat to use as a backer for welding, tube for the .22 receiver, chuck of 4140 for my tube gun bolts, some tool steel for guide rods and firing pins.

 

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  dcorb

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Posted: October 10 2008 at 5:23pm | IP Logged Quote dcorb

Well the thin tube is too thin. Bolt just fits. Might have take a lottle off of it.

 

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  dcorb

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Posted: October 10 2008 at 5:25pm | IP Logged Quote dcorb

inabadhood talked me into using an AR15 fcg. Here is my grip stick for my tube guns.

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