9mm 5.5" INCH BARREL

Best Length HG for Suppressor use with this barrel :

4.25" or  SD Type 4.25/8.25

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
• Weight -