AR-15 Upper question

From the .22 to the mighty 50 caliber

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AR-15 Upper question

Postby marcbme » Sun Jul 23, 2006 10:33 pm

I have an Oly Ultra match flat top and would like to get a CAR or entry upper for fun. Do all uppers match all lowers or is there something I need to match?

Lord......let me be as good a hunter as my dog thinks I am....amen
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Postby bgoldhunter » Mon Jul 24, 2006 1:58 pm

For the most part, they all work. The exception would be, say, a large hole Colt on a Bushmaster that has a small hole. Most everyone but Colt uses small hole receivers, so it looks like you are good to go. There are also adapter kits if you are really wanting to use a Colt on a non-Colt item.
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Re: AR-15 Upper question

Postby SSG-B » Sat Dec 31, 2011 9:33 am

Check out for a spikes tactical upper cheep and quality. If you want to just go plinking for cheep get a .22 bolt conversion kit.
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