ar10 buffer tube

[Tmnpmg]

anyone have a extended tube laying around they want to sell? I think this is the issue with it not cycling.

 

[Kansaswoodguy]

If the gun isn't cycling check that the gas block is lined up properly. That the gas port doesn't have a bur inside where they bored into the bore of the barrel blocking the gas. With some AR 308's there is a 1/4" longer gas tube. And that the gas key is tight, gas rings are ok. My AR 308 takes a 1/4" longer gas tube than an AR15 rifle length tube.

 

[Tmnpmg]

I peeled my other ar 10 apart and found that the buffer tube is shorter on this one the spring is longer, and the weight is smaller. I am pretty sure it is a ar15 setup. It does have enough *** to close the bolt, or space to open it all the way

 

[Kansaswoodguy]

It's not a carbine buffer tube and weight is it as far as I know the rifle length buffer tube is the same for AR-15 and AR-308. Is your gun an Armalite?

 

[Tmnpmg]

Rhino arms lower, dpms upper. The working gun has a pro, the other has a magpul 6 position

 

[Kansaswoodguy]

Is the spring and weight for a AR-308 sounds like you may have a AR -15 spring and or weight

 

[Tmnpmg]

I think you are right. have an extra spring and weight?

 

[msalm]

The tubes are the same, the buffer and spring are different between the 10 and 15.

 

[Kansaswoodguy]

I don't have any spare carbine buffers laying around