DB Custom Inner Barrel

• Made in the USA
• 363mm in length (For M15/M4)
• 6.01mm tightbore
• Increases Velocity Performance
• Improves accuracy
• Average 30% increase in range
• Glass hand polished finish
• Precision machined brass alloy
• Standard, universal hopup cut and specific cuts available
• Each barrel is hand straightened to 0.0015TIR (Total Indicated Runout)
• Precision chamfered chamber
• Precision crowned muzzle
• Consistent inner diameter dimensions to within 0.003mm