Best Length HG for Suppressor use with this barrel :
4.25" or SD Type 4.5 SD /8.5 HG
Specifications:
- Length - 5.5"
- Material - 4150 Chrome Moly Vanadium
- Profile - Straight
- Finish - QPQ Corrosion Resistant
- Gas System - Blowback
- Gas Block Journal - No gas block or tube required
- Twist Rate - 1:10 Inches
- Muzzle - 1/2x28 Threaded
