AR-10 parts interchangable?

[Rem700SD]

Are the upper and lowers from major AR-10 manufarcturers interchangable? I mean from the 3 major makers, Armalite, DPMS, and Bushmaster/RRA.

I'm almost set on a Bushmaster BAR-10 if I can find one, but I don't know if RRA will ever continue the production. I like the idea of being able to change uppers.

 

[DnPRK]

An Armalite upper will fit on a DPMS lower, but will leave an ugly gap behind the takedown pin and there will be problems with DPMS magazine fit with an Armalite upper. A DPMS upper will not fit an Armalite lower.

I don't have experience with Bushmaster/RRA

 

[rbernie]

Major assemblies don't interchange, but some parts (e.g. barrels) can.

 

[kcmarine]

It's interesting that the AR- 15 assemblies are interchangeable, yet the AR- 10 assemblies are not.

 

[DMK]

It's interesting that the AR- 15 assemblies are interchangeable, yet the AR- 10 assemblies are not.

AR15s are unique in that they follow the specifications of the military M16s (similar to the way 1911s do with the military M1911A1). The .308 ARs (AR10s are Armalites specifically) are proprietary 'solutions' that each company came up with on their own with disregard to their competitors rifles. They were never designed to interchange.

You wouldn't expect a Winchester rifle's parts to fit a Remington or a Savage, would you?

 

[kcmarine]

Yeah, but you know... you kind of expect things to follow a pattern.

 

[Rem700SD]

So..does anyone know if Rock River is actually producing the .308 yet?

 

[kcmarine]

.308 rifles? Yes.

Uppers? Me don't know.

Nateonal Hawkey Leeg? I don know eather...

Vasevall as been berry, berry good, to mae.

 

[Rem700SD]

Bushmaster and the RRA .308 are on the same pattern I think. I'll try to find either at the Houston Gun show tomorrow! Thanks for the replies.