[lvxdm]

Hey Everyone,

I'm new to the AR scene. I've had a Bushmaster XM15-E2S for a long time now. I've been reading through all the good info on this forum because I've decided to dive into the world of building a new AR.

I'd like to build a flat top as inexpensively as possible but still want a quality rifle. My question is can I put most any upper receiver on my lower Bushy? I'm looking at getting BCM, CMMG, or Bushmaster in 14.5" barrel with a mid gas system. My current upper has a 14.5" barrel.

Any advice on compatibility or additional good companies to look at will be appreciated.

Thanks in advance for your input.

 

[mvician]

My question is can I put most any upper receiver on my lower Bushy?

Yes

 

[MordeKyle]

Just about all of them are exactly the same.

 

[Deadcenter]

Just about all of them are exactly the same.

^this


They comply to the standard, or don't last very long.







The most important thing is that you get an AR.

 

[lvxdm]

Great. Thanks

 

[Mr Evilwrench]

And, you can get them in multiple calibers now, totally interchangeable. .22LR, 7.62x39, .300BLK, .458 SOCOM, 6.5 Grendel, 6.8SPC, 9x19, probably a few more. There's even a .50BMG upper, though it doesn't use the mag well, as you can understand.