Allright, I spent all night reading and looking over the internet and I just want to make sure this is 100% correct.

If I order a lower, have it engraved with the appropriate markings, then file a Form 1 with THAT lower, can I then put a Short barrel on it?


Also, can anyone confirm if you can put multiple calibers and barrel lengths on the form 1, or can you only put 1?

Thank you