USAF Carbine GAU-5P ===CONCLUSION with Pics of Build

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[ARCHIVED THREAD] - USAF Carbine GAU-5P ===CONCLUSION with Pics of Build

Posted: 10/6/2016 6:23:29 PM EDT

I really like this mix master AF rebuild.
And, I have almost all of the parts necessary to pull it off (including a partial fence lower with M16 retro engraving)
I also cut down/threaded a SP1 carbine barrel to 14.75" long, and then, pinned/welded an A1 bird cage flash hider to it.

Two questions that I can't find info on for sure.
#1 flat or tapered slip ring?
#2 Would it have been crudely restamped GAU-5P on the lower receiver during the rebuild?

Posted: 10/6/2016 6:29:39 PM EDT

[#1]

Quoted:

I really like this mix master AF rebuild.

And I have almost all of the parts to pull it off (including a partial fence lower with M16 retro engraving)

I also cut down a SP1 carbine barrel to 14.75" long, and pinned/welded an A1 bird cage flash hider to it.

Two questions that I can't find info on for sure.

#1 flat or tapered slip ring?

#2 Would it have been crudely restamped GAU-5P on the lower receiver during the rebuild?

http://i1012.photobucket.com/albums/af248/jeepdan/AIRFORCE%20CARBINE_zpsabiaxbow.jpg

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Posted: 10/6/2016 6:46:24 PM EDT

[#2]

In most of the AF mixmaster carbine pics I've seen, they have a flat slip ring.

As for markings, maybe, maybe not

...also they are GUU 5P not GAU 5P

Posted: 10/6/2016 8:16:53 PM EDT

[#3]

I'm building a 651 clone. FA upper partial fence lower, 14" barrel with fat washer and A1 FH and a rifle stock.
Flat delta ring. It's on a Tactics lower. Don't plan to go any further. Maybe one day on an 80% lower and engraved but not right now.

Posted: 10/6/2016 11:00:45 PM EDT

[#4]

most would have had a flat slip ring i believe. i did my GUU-5/P clone as a later rebuild with an m4 barrel.

this is how my lower is stamped

Posted: 10/7/2016 7:59:18 AM EDT

[#5]

Thanks everyone for the help

Now, if I could just find a photo of a receiver stamped GAU-5P to confirm.
If anyone can find a photo, please post.

1iviper, I love the Anniston Army Depot initials stamped on the right side of the receiver

Posted: 10/7/2016 9:37:40 AM EDT

[#6]

I'm thinking that an Air Force M16 rifle that had been rebuilt into a carbine would more that likely have been restamped.
Does that seem reasonable, from looking at other Air Force rebuilds?

Posted: 10/7/2016 10:37:31 AM EDT

[#7]

This site might be helpful...

http://www.retroblackrifle.com

Posted: 10/7/2016 10:32:02 PM EDT

[#8]

Have seen quite a few GUU-5/P carbines in past years, seems like there have been every different variation, so I don't believe there is any "correct" GUU-5/P; they're all different from each other.

Posted: 10/8/2016 7:53:02 AM EDT

[#9]

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Quoted:
Have seen quite a few GUU-5/P carbines in past years, seems like there have been every different variation, so I don't believe there is any "correct" GUU-5/P; they're all different from each other.

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A+ this. I've even seen one that had a commercial Non-U.S. Property marked M-16 lower, 14.5" 1/7 twist pencil barrel, gen 2 stock. The GUU-5/P markings were below the ser # and the M-16 markings were still intact.

Posted: 10/10/2016 8:33:02 PM EDT

[#10]

I carried a few GAU's and GUU's and none of them were the same. You could have a skinny barrel with an A1 upper, A2 grip with an A2 flash hider and M4 butt stock. One GAU I carried had an A1 grip, flat slip ring, A2 upper, the early two postion aluminum butt stock, M4 handguard, a no fence lower, and an M-4 barrel with an A1 flash hider.

It always seemed to me they just blindly grabbed at parts when they slapped them together over the years.

Posted: 10/10/2016 9:39:28 PM EDT

[#11]

Quote History

Quoted:
I carried a few GAU's and GUU's and none of them were the same. You could have a skinny barrel with an A1 upper, A2 grip with an A2 flash hider and M4 butt stock. One GAU I carried had an A1 grip, flat slip ring, A2 upper, the early two postion aluminum butt stock, M4 handguard, a no fence lower, and an M-4 barrel with an A1 flash hider.

It always seemed to me they just blindly grabbed at parts when they slapped them together over the years.

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Can you remember how the GAU receivers were stamped?
Did they XXXX out the previous model number and had stamp GAU-5P?

Posted: 10/10/2016 10:23:23 PM EDT

[#12]

As best I can remember the lower said Colt AR-15 then M-16 with GAU-5 stamped by it. You could tell it was hand stamped, albeit poorly. Some carbines had the the old info lined out and others were X'ed out. I think one of the GAU's we had an Anniston Army Depot marking on it too. I carried these things like 10-12 years ago so my memory is fuzzy. But from what our armorers said they all were converted from M-16's in the 70's or 80's. Once the M-4 came out these guns were turned in by 08 when I was active and then we got rid of our GAU's in the Air Guard in 10 or 11.

Posted: 10/10/2016 10:53:30 PM EDT

[#13]

Quote History

Quoted:
As best I can remember the lower said Colt AR-15 then M-16 with GAU-5 stamped by it. You could tell it was hand stamped, albeit poorly. Some carbines had the the old info lined out and others were X'ed out. I think one of the GAU's we had an Anniston Army Depot marking on it too. I carried these things like 10-12 years ago so my memory is fuzzy. But from what our armorers said they all were converted from M-16's in the 70's or 80's. Once the M-4 came out these guns were turned in by 08 when I was active and then we got rid of our GAU's in the Air Guard in 10 or 11.

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Thank you so much.
This is the kind of firsthand info that I have been looking for.

Posted: 10/20/2016 9:54:27 AM EDT

[#14]

This build came together fast, because I changed directions, and robbed parts from another project.

I really like the looks of the partial fence lower.

CMP CHROME BORE barrel with C Bell marked FSB cut to 14.75" length, threaded, and bird cage pinned and welded.

I didn't add any wear to the lower receiver finish, because the 604 Upper Receiver is in almost unused condition.

Posted: 10/20/2016 9:57:11 AM EDT

[#15]

Slightly better view of GAU-5P stamping.

Posted: 10/20/2016 2:38:55 PM EDT

[#16]

Quote History

Quoted:
<a href="http://s1012.photobucket.com/user/jeepdan/media/DSCN3433_zpslzq9yvol.jpg.html" target="_blank">http://i1012.photobucket.com/albums/af248/jeepdan/DSCN3433_zpslzq9yvol.jpg</a>

<a href="http://s1012.photobucket.com/user/jeepdan/media/DSCN3432_zpsm1oje6vs.jpg.html" target="_blank">http://i1012.photobucket.com/albums/af248/jeepdan/DSCN3432_zpsm1oje6vs.jpg</a>

Slightly better view of GAU-5P stamping.
<a href="http://s1012.photobucket.com/user/jeepdan/media/DSCN3434_zps1izqdfcn.jpg.html" target="_blank">http://i1012.photobucket.com/albums/af248/jeepdan/DSCN3434_zps1izqdfcn.jpg</a>

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That turned out outstanding!

Posted: 10/20/2016 3:08:06 PM EDT

[#17]

Quote History

Quoted:
That turned out outstanding!

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Quote History

Quoted:

Quoted:

<a href="http://s1012.photobucket.com/user/jeepdan/media/DSCN3433_zpslzq9yvol.jpg.html" target="_blank">http://i1012.photobucket.com/albums/af248/jeepdan/DSCN3433_zpslzq9yvol.jpg</a>

<a href="http://s1012.photobucket.com/user/jeepdan/media/DSCN3432_zpsm1oje6vs.jpg.html" target="_blank">http://i1012.photobucket.com/albums/af248/jeepdan/DSCN3432_zpsm1oje6vs.jpg</a>

Slightly better view of GAU-5P stamping.

<a href="http://s1012.photobucket.com/user/jeepdan/media/DSCN3434_zps1izqdfcn.jpg.html" target="_blank">http://i1012.photobucket.com/albums/af248/jeepdan/DSCN3434_zps1izqdfcn.jpg</a>

That turned out outstanding!

i concur

not only does it look great i bet it handles fantastic

Posted: 10/20/2016 3:36:12 PM EDT

[#18]

Looks great, well done!

Posted: 10/22/2016 9:00:38 AM EDT

[#19]

Looks great and pretty familiar. Just like the one I carried when I first came in the Air Force.

Posted: 10/22/2016 10:25:15 AM EDT

[#20]

Quote History

Quoted:
Looks great and pretty familiar. Just like the one I carried when I first came in the Air Force.

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Thanks,
In regards to the sling, should I keep the M1 type sling on it, or replace it with the latter black sling with the two H buckles be more correct?

Thanks to all for the kind compliments.

Posted: 10/22/2016 10:37:17 AM EDT

[#21]

Clean,sleek, just plain beautiful!!

Nice job JD.

Posted: 10/22/2016 9:36:08 PM EDT

[#22]

Pictures of a GAU marked here
May have already been mentioned
http://www.ar15.com/forums/t_3_123/702427_Latest_Acquisitions__Form_4_.html

Edit: finally figured out the hot link