Colt M16A2 GBBR Key Features

Fore-end

Steel CNC A2 5-hole "Birdcage" Flash Hider
Lightweight Design 20" A2 Style Heat Dissipation Thread Dummy Outer Barrel
AR Style Classic Front Sight Base(with bayonet mount)
Adjustable Front Sight
Metal Sling Swivel
Steel Handguard Cap
M16A2 Military Issued Nylon Handguard and Aluminum Heatshield
Dummy Gas Tube
VFC Outer Barrel Base HOP-UP Adjusting Design with Steel HOP Base
Metal Barrel Nut

Receiver

Colt Full License Authorized Colt M16A2 Marking
A2 Type Carrying Handle Upper Receiver(with shell deflector)
Adjustable Rear Sight and Windage Dial
Steel Bolt Catch
Metal Fire Selector
A2 Type Grip
CAR-15 Early Model Charging Handle
Steel Dust Cover
Steel Dummy Forward Assist Knob

Stock

A2 Style Fixed Stock
Buttstock Built in Steel Sling Slot
Anti-slip Pattern Butt-Pad(with trap door and store space for maintenance tools)

FCS

Bolt Carrier Group in Classic Type
Steel bolt cam pin
Steel Disconnected Set
New Design "Non-cut lever" Steel Hammer Set
Improved New Design V3 Firing Pin Parts
New Setting Buffer Spring with High-Speed Weight Increase Buffer Unit
Steel Buffer Stop

Magazine

New V3 20Rd Gas Magazine
New Design Bolt Stop Latch with Non-BBs Fire Function
Hidden Gas Fill Valve
Colt Full License Authorized Magazine Base Plate