I wouldn’t bother with a trust if you’re just doing a single sbr.
To SBR an Ar lower you fill out and submit and eForm 1 online. You’ll have to send them finger prints. Takes them maybe a month to process. It’s really easy. If you use a service for finger prints it’s about $20. Have to engrave your name and city/state on lower.
12” on an AR with a standard carbine stock is about as short as you can go and meet the 29” Maryland length thing. 14.5” is a nice barrel length that’s easy to find. Could also take a 16” barrel and take just enough off the end to be <16”.
To SBR an Ar lower you fill out and submit and eForm 1 online. You’ll have to send them finger prints. Takes them maybe a month to process. It’s really easy. If you use a service for finger prints it’s about $20. Have to engrave your name and city/state on lower.
12” on an AR with a standard carbine stock is about as short as you can go and meet the 29” Maryland length thing. 14.5” is a nice barrel length that’s easy to find. Could also take a 16” barrel and take just enough off the end to be <16”.