I am going to build a AR based PDW (NFA reg SBR). Want something small and handy in confined spaces. Unsure what barrel length that I should go for. Before I can start the ball rolling, I need to settle on a barrel length for the Form 1. Here are the choices that I am looking at:
It will get a Magpul CTR stock. Troy flip sights. Comp M3 on a LaRue mount. If 9" or longer will get LaRue Handguard. LaRue LT-FUG foregrip.
I already have a registered M16 with 12.5" barrel.
What's everyone think?