Armory Sponsor
Posted: 8/15/2002 10:12:05 AM EDT
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I want to buy a 9mm upper for my AR but I'm not sure what kind to buy. I like the RRA but my buddy told me that if I got one of them I would have to change something in my lower, Is this true and if so what do I have to change? Also if I change it will I be able to use my normal upper or will I have to change it back I know that Olympic arms make them also but I would like to get a Flat top and so far I have only found the RRA flat top |
Armory Sponsor