You do not need to go out and buy your player a new bat to play middle school baseball. 

If you do purchase a bat:

In middle school we usually follow VHSL rules (exception pitch counts) and this means that we use the BBCOR .50 bats. 

We are not sure if the PWCS middle schools will move to another bat standard like the USA standard. AT THIS TIME THERE IS NO WORD ON THIS ISSUE. Feb 2018. At this time we are still using the BBCOR .50 bats.