This is a Backup Tactical Barrel chambered in 9MM, model G19TB-ODG.
Backup Tactical produce their barrels in SMALL BATCHES so they can focus on machining each barrel to the most exacting standards and tolerances in the industry. The result is MATCH GRADE ACCURACY and a PRECISE DROP-IN FIT. Accuracy and fit are paramount" but their parts have to look cool too.
Features:
Aisi 416 stainless steel
Pulled broached rifling
Saami spec 9mm
1/16 twist