This has a 20" Cold Hammer Forged Stainless Steel Barrel - Threaded 1/2"x32 TPI - 1:10" Twist Rate with 6 Grooves - Ruger Muzzle Brake System - Large White Bead Front Sight - Adjustable V Notch Rear Sight. It is a "Heavy" Contour Barrel.

20 inch heavy https://ruger.com/products/guideGun/specSheets/47117.html UPC: 736676471171

Description: RUG GUIDE GUN RFL 338 SS
Brand: Ruger
Model: Guide Gun
Type: Rifle: Bolt Action
Caliber: 338
Finish: Hawkeye Matte Stainless Steel
Action: Bolt Action
Stock: Green Mountain Laminate
Sight: FT: Lrg White Bead RR: ADJ-Shallow Exp V-Notch
Barrel 20 inch heavy
Overall Length: 41 - 42.50
Weight: 8 lbs
Capacity: 3+1
Safety: 3-Position Safety
Receiver: Matte Stainless Steel, Integral Optics Base
Muzzle: Removeable Radial-Port Muzzle Brake
Butt Plate: Black Rubber, W/ 3.5 Spacers
Features: Hinged Solid - Steel Floorplate;
Rifling: 1-10 RH, LC6 Trigger