High Standard Complete AR-15 SALE

can i match the 9mm upper with the AR 15 lcomplete ower? thanks

It would be my assumption that the mag well of the complete lower is designed for a 5.56 / .223 magazine and will work WITH a 9mm magazine adapter... but I will let those who know better than I say for sure: I just wanted you to get some answer quickly because it looks like you are still on right now.
 
The 9mm uppers are all gone but there are some complete 556 guns left and s complete lower.
 
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