[DCBryan1]

Oh yeah, I forgot....what is the cost to laser ENGRAVE every magazine with a unique serial number according to ATF specs?

[Myrddin]

Laser engrave won't do the job for an SBR lower to meet ATF specs for a Form 1 or Form 4. It needs to be a physical engraving. I have a local FFL with a high quality milling machine. His day job is at the Idaho National Labs as a machinist. He has great software to layout the engraving and a high quality mill to execute. Mine are engraved on the front of the AR-15 lower mag well. It's a stripped lower at milling time. I build it up after milling and refinish the milled bare metal.