300 Blackout SBR

[chriso1283]

Can anybody help me with the step by step process of building an SBR? I’ve got a lower ordered and an upper assembled. I’m not sure of my next step. Get a trust going first? When do I need to get the lower engraved? Help please and thanks in advance.

 

[Gwak2006]

Get your trust set up first. Then fill out all your paperwork with the ATF, including pictures. A lifetime later, you get your stamp, then get your lower engraved before assembling.