Rifle buffer & stock, with a carbine gas system?

OkayShooter

OkayShooter

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I got a lower here that's got a A2 stock with rifle buffer and spring. I like the fixed stock because no weird half on the stock and half on buffer. I'm wondering if I would run into a short stroke issue if I run a carbine or pistol gas length upper. Also being there is really no heavy rifle buffers system out there.

Anyone have experience?
 
Shouldn't be any problem. Carbine and pistol length gas systems are made to cycle the bolt with with standard ammunition. Both carbine and rifle buffers are meant to work with standard ammunition. So you actually have two separate systems that shouldn't affect each other. Now, if you use a carbine buffer and spring in a rifle length tube you could get some issues. I've seen a standard A2 stock on a 7.5" NEA that worked perfectly.
 
KePet said:
Shouldn't be any problem. Carbine and pistol length gas systems are made to cycle the bolt with with standard ammunition. Both carbine and rifle buffers are meant to work with standard ammunition. So you actually have two separate systems that shouldn't affect each other. Now, if you use a carbine buffer and spring in a rifle length tube you could get some issues. I've seen a standard A2 stock on a 7.5" NEA that worked perfectly.
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Thanks. I got a A2 buffer system on a lower and I like the feel. I just don't want to run a rifle length upper. Or want to put a stock system I don't like, just for a buffer to function with a upper. Seems like the rifle buffer slightly heavier then a 9mm buffer. But just didnt know if the rifle buffer system would cause issue.
 
Your rifle buffer will definitely be heavier than a 9mm buffer, but with standard buffers for .556 (although there are custom weights) the buffers are the same. You use the same buffer in a carbine tube, or a rifle tube, just a different spring, because the carbine tube is shorter. You can even use a carbine buffer and spring in a rifle buffer tube, if you use a spacer. I am running a JP Enterprises captured spring buffer in mine, and it comes with a polymer spacer to use if using a rifle length buffer tube.
 
BioPace said:
I ran a A2 rifle stock on a 14.5" spikes piston upper with no issues, though I definitely prefer the UBR I have now.
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Innercity said:
I'm running a A2 stock and rifle buffer on a 11.5" LW-50 barrel, with carbine gas. Love the setup, I've encountered no problems.
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Thanks. I ran many AR's setup, just never this combo. I just like the feel of the A2 stock.
 
Not to start a new similar thread but I have a .308 modern Hunter with a fixed buffer tube and I want a 6 position tube. Do thy make 6 position rifle tubes or just carbine ones?
 
Just carbine ones. Although I think the question you're actually asking is-can you put a carbine tube on a .308. The carbine/rifle designation has nothing to do with caliber. You can change out your tube on your modern hunter, but would need a new buffer spring as the carbine buffer tube is shorter. My suggestion is get the JP Enterprises silent capture buffer spring for the AR-10 (.308) because that way, with the spacer, you can use either buffer tube without worrying
 
I guess I didn't clarify that very well. Rifle and Carbine tubes will work with .556 or .308. There isn't a different carbine buffer tube for .308, it's the same one as for .556. The tube internal dimensions don't change, except for length. The only difference is the springs and the buffer for different calibers
 
The buffer will work, but you'll need a .308 carbine buffer spring. The rifle spring will be too long and won't work properly. By compressing the spring in the shorter carbine tube you'll get too much spring pressure and probably get short strokes. It's easier going from a carbine length to rifle length, because all you really need is a spacer to take up the extra space in the buffer tube. Going the other way you need a new (shorter) spring. Just about any of the site sponsors on here will be able to set you up if you give them a call, or even give ATRS a call. Should be about $30 and you're good to go
 
KePet said:
The buffer will work, but you'll need a .308 carbine buffer spring. The rifle spring will be too long and won't work properly. By compressing the spring in the shorter carbine tube you'll get too much spring pressure and probably get short strokes. It's easier going from a carbine length to rifle length, because all you really need is a spacer to take up the extra space in the buffer tube. Going the other way you need a new (shorter) spring. Just about any of the site sponsors on here will be able to set you up if you give them a call, or even give ATRS a call. Should be about $30 and you're good to go
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Great, thanks a lot!
 
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