For AR gurus

[RomanKnight]

A few Qs? about AR-15: can one use a A2(long) stock on a CAR(short) buffer tube? Can one use an industry/non-milspec (larger diam?) colapsible stock over a milspec buffer tube? Does the length of the buffer tube affect the proper functioning of a AR (can I use carbine tube on a long rifle, and the other way around)?
Anybody has any experience with Rock River UTE upper? Regular rear sight, then rail in front of it, instead of carrying handle. I bet the sight do NOT co-witness any optics. TNX

 

[Bartholomew Roberts]

can one use a A2(long) stock on a CAR(short) buffer tube?

No, the A2 stock will not fit over a CAR buffer tube.

Can one use an industry/non-milspec (larger diam?) colapsible stock over a milspec buffer tube?

You should be able to use a larger outer diameter stock over a smaller OD tube; but it will likely fit poorly.

Does the length of the buffer tube affect the proper functioning of a AR (can I use carbine tube on a long rifle, and the other way around)?

As long as you use the correct buffer with the correct buffer extension (rifle buffer with rifle length buffer extension, CAR buffer with carbine length buffer extension) it doesn't matter what type of barrel is being used. So you could use a collapsible stock on a 20" or 24" rifle.

 

[RomanKnight]

Thanks. Exactly what I wanted to know!