Wrong buffer tube

[Footnode]

So I ordered a few parts about a month ago for an incoming ma-ten, and only recently did I realize the Vltor buffer tube is actually the AR10 version instead of the AR15 version.

The problem is that I also ordered Slash's CAR10 buffer made for AR-15 tubes.

Looking over the order form I found out it was my fault and not a packing error.  DERP  <laughs>

Do you guys think this could cause any problems?

Since the CAR10 buffer recommends a lighter spring (29 coils?), could I just use the original 36 coil spring to negate the different?

The Vltor tube is only about 3 quarters of an inch longer than the AR-15 tube. Same dimensions, one is just longer.

I realize this could cause FTF/Jams, but id rather not spend any more money unless necessary.

<dontknow>

[pdc]

I wouldn't deviate from what Mega recommends.  I went with the AR-10 Vltor tube myself.  It works great so far.  Andy buying a spring and buffer from Armalite was cheaper too.  That reminds me, I need to order some more springs from them and store them away.

[tlcoy1911]

Be careful with what you use togather.

You could have BCG slaming into the treaded area of your receiver if the tube is to long for the buffer

[survivalshop]

Just use an AR10 buffer spring . I'm not an Armilite person ,but I think they use the same spring for both carbine & rifle , some one jump in who knows for sure .

The buffers are all the same dia. , as is the ID. of the receiver extensions on AR 15's & AR 10's & DPMS type 308's. Its the OD. of the receiver extensions that come in two different sizes ,commercial & Mil spec.

AR 15 springs do not mix well with the 308 's.

[Toiletcat]

Ive heard of people putting a few quarters in the rear of their buffer tubes to prevent bolt overtravel.

Seriously though just get the right tube  <laughs>

[unforgiven]

Welcome from Indiana brothers.

[NoFail]

Welcome Footnode,

Go to the bottom of this thread and find Slash's response to OP's questions. Slash is THE MAN from Heavy Buffers and I bet what you read will help you in some capacity. Here's the link >  http://308ar.com/forum/building-a-308ar/first-308-build-need-advice!/  <thumbsup>

[Slash]

Please don't use a CAR-10 buffer with the extended buffer tube.  Your bolt can over-travel and the carrier key will strike the lower receiver ring.  Chaos will ensue.

I have milspec carbine buffer tubes in stock if you need one.