Proper buffer selection

[Stick'n'String]

Ok so I'm trying to find parts for my lightweight AR build (it's my first ever AR build) and in starting with a stripped upper and stripped lower. How do you select the proper buffer tube, buffer spring, receiver extension, and whatever other parts I'm forgetting that go along with those. I know there are different weight buffers and their are carbine and rifle length buffers. I'm assuming if I get a carbine buffer then I get a carbine spring. Their are several different size/weight carbine buffers and springs so how do I know which one to select? I'm building a 6.8 and I'll have an adjustable gas block if that makes a difference.

[Mike D]

If you are going to have an adjustable gas block just get a standard carbine buffer and spring. A regular 5 or 6 position carbine buffer tube will be fine as well.

[Stick'n'String]

Ok, thanks for the help.

[ted_kennedys_liver]

My 6.8 has fixed gas, Spikes T2 buffer, tubbs flat wire spring and PWS enhanced buffer tube. Tack driver and no cycling issues.