This Lo-Pro 16" Recon barrel features a stainless steel barrel with a bead blasted finish, a .750" gas block, 1/2x28 threads, extended feed ramps, and a medium contour.
Specifications:

Caliber or Gauge	223 Remington/5.56 NATO
Length	16"
Model
Twist	1:7"
Sights	None
Bore Type
Finish	Stainless Steel
Type
Chokes Included
Choke Configuration
Barrel Type	Threaded
Ammo Type
Barrel Features	1/2"-28 tpi