First build

I know I'll only be printing the lower but this will be the first build of any gun so im excited to get it and start moving. I'm printing the lower out of PA6-CF20 and ill properly anneal it. Can anyone recommend a good lower to print for this kit?

I know I'll only be printing the lower but this will be the first build of any gun so im excited to get it and start moving. I'm printing the lower out of PA6-CF20 and ill properly anneal it. Can anyone recommend a good lower to print for this kit?