Our take: With a length of 10.5 inches, the Krytac airsoft Trident M4 CRB outer barrel is a one piece metal barrel assembly that comes complete with all necessary parts for installation. Compared to the archaic multi-piece designed barrels, a one piece barrel is by far more stable, and gives the airsoft gun an authentic appearance and feel. The barrel size is 14mm with a negative thread pattern. This is the standard barrel assembly for the Krytac Trident M4 CRB, although it can serve as a replacement or upgrade part to many other M4 AEG platforms.

 Features:
- High quality weapons grade aluminum construction. 
- Factory direct Krytac OEM replacement part.
- Barrel size is 14mm w/ negative thread.
- Smooth matte black barrel finish.
- All parts included necessary for assembly. 

Specifications:
Manufacturer: Krytac
Model: Trident Outer Barrel
Material: Weapons Grade Aluminum

Package includes: 1X Outer Barrel Assembly

Package weight: 5.5 lb