Let's say I wanted to buy a machine gun. And let's say there's a 9mm colt AR on Subguns. Could I swap the upper and bcg and fire 223? Or would I be better off buying a standard transferable AR and swapping uppers? This things mint.

Yes, the lower is the registered part. You can put anything that you want on top. If the lower is registered in that caliber, you can even leave it in that configuration indefinitely. But if it's not registered in that caliber, you can swap it out to shoot, but when you're finished, you need to return the lower to it's registered configuration, or just leave the lower without any upper attached.

Well, more than likely the 9MM Colt lower is 9MM only (magwell only set up for 9MM.

When it comes to Machinegun games, it pays to do your research, as there are lots of variations.

For my M16 I have uppers in 22LR, 5.7, several 223/5.56, 7.62x39, 300AAC & 9mm



Only 1 Ares Defense but I have both 12" & 16" barrels but I still NEED a 9mm upper

This message has been edited. Last edited by: kimberkid,

So far I have only used my different 5.56 uppers and 300blk uppers on our M16 lowers. I have not bothered with my 22 or 9mm. I have a spare 9mm magblock, but I just never saw the point since we also have MP5s and UMPs if I wanted to play with 9mm and .40.