Battle Arms Developments new ONE:1 Glock 19 barrel is made in one machine from beginning to end.  Including the ultra-precise singe point cut rifling.  BAD's rifling cuts are processed in a way to prevent from inducing stress on the barrel, eliminating the need to stress relief the barrel after rifling. 

BAD achieves perfect concentricity between chamber, bore, and rifling.  Their proces also yields uniform twist rate and ultra-accurate rifling grooves with a deviation of less than .0001" from groove depth to groove depth.

Features:

• Material: Heat Treated 4140 CM Steel (Black Nitride); Heat Treated 416R Stainless Steel
• Thread:  1/2" x 28 Thread
• Fluting: Straight 
• Finish: Melonite QPQ Black Nitride; Stainless Steel
• Twist Rate: 1:10
• Thread Protector:  SABERTUBE Dimpled Patterned Thread Protector with O-Ring
• Crown:  11° Target Crown
• Engraving:  BATTLEARMS LOGO
• Made In USA