11.5 inch Colt model 733 / M4 Commando / XM177E2 barrel (.625)

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$199.00

From Retro Rifles - a well made reproduction of the barrel used in 11.5 inch Colt Commando models from 1967 (XM177E2) up until the mid 80's (model 733). Available with or without Chrome lining.

  • Why choose this barrel?
  • 11.5" Pencil Profile, just like the original
  • Chrome Lining optional
  • Very Light Weight for size: 1.1 lbs
  • 1:9 Twist.. which is hard to find for those of us who prefer it
  • You want to save more weight

 

Specifications:

  • 11.5 inch, 4150 Barrel
  • 1:9 Twist
  • Phosphate Finish
  • "Pencil" profile (.625 at Gas Block)
  • M4 Feed Ramps
  • 1.1 lbs.

 

Front Sight Base Specifications:

  • Choice of "F" or "non-F" FSB

Full Assembly Specifications: 

  • 11.5 inch, "Pencil" profile
  • 1:9 Twist
  • Mag Phosphate finish
  • Carbine length gas
  • M4 Feed Ramps (compatible with both M4 and non-M4 lowers)
  • Tapper pinned FSB
  • .625 FSB, Non- F mark
  • A1 Round Front Sight Post
  • Early Flat Style Straight "Slip Ring" (not Delta Ring)
  • 4.25" Moderator with Grenade ring (not pinned, removable)
  • Gas Tube & Pin
  • Barrel Shim (just in case it is needed for Barrel Nut timing, taper pins do not need to be removed to install)
  • Made in USA

 

**Note: Full Assembly will take 4 to 6 weeks to ship from order date

 

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