8 inch or 11.3 for 9mm AR pistol?

I am likely going to treat myself to a Wilson Beretta mag version.

Anyone with experience with pros vs cons in these two lengths in a 9mm AR.

Thank you.

I have an 8". It is short enough for everything I wanted in a PCC but long enough where I could grab the handguard and not feel totally cramped. I do have a VFG on it though.

I run an 8 or 8.5. I used this (http://www.ballisticsbytheinch.com/9luger.html) as a guide.

In my mind the minimal velocity gain beyond 8" wasn't worth the additional weight/length.

Mines a SBR if that matters.

I run an 8.5" on mine and really considered a 5.5". I knew I didn't want to go longer due to weight/balance concerns. I'm very pleased with the choice I made though.

Thank you