Running Arduino code for Bluefruit LE on bare ATMega328
The UNO is basically just an ATMega328(P). So you can run the same compiled code for the UNO just fine on a bare ATMega328.

You don't have to worry about the P versus non-P version. They are basically the same except for some minor differences concerning low power settings.

You can just select the Arduino UNO board as you target. Select the avrispmkii as programmer. Then instead of Upload, choose Upload using Programmer (in the Sketch menu).