The Sig Threaded Match-Grade, drop-in performance upgrade barrel is CNC machined form 4340H steel billet which results in superior corrosion resistance and durability. It has a PVD coating that creates a durable barrier against wear and a target-crowned muzzle. Included is a color matching thread protector.
Specifications:

Caliber or Gauge
Length	3.10"
Model	Precision
Twist	1:10"
Sights	None
Bore Type
Finish	PVD
Type
Chokes Included
Choke Configuration
Barrel Type	Match Grade
Ammo Type
Barrel Features	Target Crowned