I have a 300 AAC Blackout 16.5in Shoulderd Prefit for a TL3 by Preferred Barrel Blanks.
Barrel is bead blast coated black
1/7 Twist
Muzzle threaded 5/8x24 with thread protector
I have 147 Documented rounds on this barrel and will include a load data book.
I will include a go and no go gauge
it...