Only One Word Needed..... EEERRRHHHMMAAGGEEERRD!!!
Liquid Gold baby!!
 
17-4pH Stainless Steel
1/10 Twist Pulled broached/ Saami Spec 9mm
Caliber designation machined on ejection side of chamber
Finish Options:
   - Surface Ground and Micro Polished Stainless
   - ArmorLube™ DLC (Black),
   - Gold (TiN)
   - True Chamleon!!!
Enhanced FLATLINE™ Logo 
Dual Depth Flutes machined around the circumference of the barrel
Double cut Top side chamfers and Locking block detail
   - Enhanced functionality on all OEM and aftermarket slides
Hand Polished Feed Ramps
   - G19, G17, G34 Flush Cut and Polished 40 Degree Target Crown
   - G43 Micro inner Crown with Octagonal outter Muzzle Detail
        - G43 barrels are compatible with 43x models
**** At this time G17 and G34 Barrels are compatible on Gen 1-4 slides****