ar help

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blueovelwookie

New member
i am thinking of buying an ar in 450 bushmaster. what uppers can be used with the stock lower i.e. caliber barrel length. I am AR non-educated.
 
The lowers are all the same except for the mags. The uppers are all the same except for the barrel and bolt.

I'm not really sure what you're asking, though, so clarify if that doesn't answer your question.
 
An AR lower is a generic type unit. No matter what it says caliber wise on the side, it will fit/function with other AR 15 caliber uppers(generally speaking since there are a few combinations of parts which don't quite work together). If you buy a 450 and the caliber is marked on the lower, it should function with other AR 15 size uppers.
 
What Mobuck said. You only need 1 lower then you can attach most uppers, from 223 to 300 BLK to 6.5, 6.8, 450, 458, and 50. Even 50 BMG. It matters not what that lower was originally attached to. (There are exceptions to this, such as 9mm, but not many.)
 
thank you all.
i am wanting a 450 bushmaster(deer+), 308(medium range), and 5.7x28(fun, i have spare ammo).
what are some quality peices out there. total budget is $3000. i dont have to have all three calibers at once, my main concern is quality and accuracury. i have so many questions to ask.
thanks again for all the help
 
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