All conversion kits from CMMG are ARC kits. This particular model is Bravo style, which differs from the Echo style.
The CMMG, Inc 22LR AR Conversion Kit, Bravo, Left Hand is for left handed upper receivers.
I recommend contacting CMMG in regards to the compatibility of the CMMG, Inc 22LR AR Conversion Kit and the Franklin Armory BFS3 Trigger.
You can find the CMMG, Inc 22ARC 10 Round Rifle Magazines by using the link below. These magazines are limited to 10 rounds.
https://www.opticsplanet.com/cmmg-inc-22arc-10-round-rifle-magazine.html
This particular model of the CMMG, Inc 22LR AR Conversion Kit, Bravo, is for left handed AR15 receivers. If your DPMS Oracle is left handed then this conversion kit will work. You can find the right hand model listed at the link below.
https://www.opticsplanet.com/cmmg-inc-22lr-ar-caliber-conversion-kit-w-10-round-magazine-left-hand.html
The CMMG, Inc 22LR AR Conversion Kit will work if you have the left handed version. It will not work with any right hand AR15 style rifles/pistols.
Yes, the standard AR ejects on the right side. This is set up for left hand ejection. You will need the appropriate upper receiver.
Yes, this kit will work in that rifle.
The kit is designed for left hand eject. As the picture shows, the cutout on the side of the BCG to open the dust cover is on the left side.