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5/31/2012 7:01:52 PM EDT
So, looking at the 608 pics on RBR, it looks to me as if a full length buffer tube is used, yet the specs say it had a regular carbine buffer and spring. Was the tube a custom length or was an A1 used?
6/1/2012 7:38:40 AM EDT
[#1]
Well, perhaps it's possible and it's tempting.  That way I could put in a spacer and put a pin through it and the stock to keep it from rotating.  Not a bad idea.

For now, I'll just use a rifle buffer and spring.  I don't think the added mass would be a bad thing with that short a barrel.
6/1/2012 11:01:23 AM EDT
[#2]
Quoted:
Well, perhaps it's possible and it's tempting.  That way I could put in a spacer and put a pin through it and the stock to keep it from rotating.  Not a bad idea.

For now, I'll just use a rifle buffer and spring.  I don't think the added mass would be a bad thing with that short a barrel.


I think it would be a good thing actually. They 'fixed' early XM177's this way - in fact, one of my SBR builds is going to be a fixed stock XM177E1. I am a little surprised, but I LOVE fixed stock carbines - they just fit me so well...
6/1/2012 1:10:03 PM EDT
[#3]
the second pic shows a 601 style tube w/ the holes in it



i don't see how a car buffer and spring would work unless it had a really long spacer.

6/1/2012 5:26:58 PM EDT
[#4]
If you want a shorter tube, get a RRA pistol tube and tap the drain hole 1/4x28?x20? for the buttstock screw.
6/1/2012 5:41:42 PM EDT
[#5]
Or you could just have them sell you a tube from their entry stock which is the rifle tube shortened to carbine length.  

But I think it's really too short and the proportions are wrong for a 10" barrel.
6/2/2012 12:49:15 PM EDT
[#6]
When I was kind of building a 608 I had the RRA entry stock tube and it was nice and short but like Yelpers said it didn't look right with a 10" barrel.  I was thinking of going with a 7" barrel and go for a really compact package, but feel like that is waste for 5.56 but a 22 build would have been neat.  Gave up on the project since there really weren't any options for handguards then,
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