+p or +p+ 9mm load data

[Metal god]

My carbine has a 17 1/2" bbl so I figger 1,000-1,100 fps is reachable without going over max., but I haven't shot any over my chrony yet

Who makes a 45acp AR upper ? I've wanted a 9mm upper for awhile but a 45acp sounds even better . If I were to build one would I need a 458 socom upper receiver to have a large enough ejection port ?

 

[mikld]

I have a Hi-Point 45 ACP carbine. Appears crude, but it gets excellent reviews and has been flawless in it's performance. I have a "Just in Case" load of a 230 gr. FMJ over an upper charge of Bullseye that gives me approx 825-850 fps and will feed in any 45 ACP I have. Works quite well in the HP carbine...

 

[GoldieMI]

Who makes a 45acp AR upper ? I've wanted a 9mm upper for awhile but a 45acp sounds even better

https://www.maconarmory.com/
Give Rudy a call at Macon Armory. He put together a DI 45ACP upper for me with magwell adapter and magazines with last round bolt hold open. Plus he did a 9mm blowback for me as well.

CMMG does complete guns with radial delayed blowback in both 45ACP and 9mm as well. Not just uppers though. my 9mm pistol from CMMG is an awesome range toy.