PA Hand Grip , and ABS Stock. Extreme Durable and just like a real gun.
With MAGPUL PTS MOE Series Accessories. You could try how realism of strong recoil action from GBBR, yet won't add burden to your equipment bag.
WA internal parts with all possible METAL upgrade from G&P such as Hop-up chamber set
Crispy Metal Sounds & Smoother slide cycling
Using 39 rounds M4 GBB magazine.
Sling mount can be installed with any single, 2- or 3- point tactical sling
Licensed MAGPUL PTS Type Aluminum Metal Receiver with Laser Marking
Made in Hong Kong

Upgrade Include:
-WA Magpul PTS  Type Metal Body (Sand) (WP140S)
-WA Magpul PTS  Gas Blowback Magazine (39rds) (Sand) (WP159S)
-Magpul PTS MOE Pistol Grip (Dark Earth)
-Magpul PTS Back-Up Rear Sight (Dark Earth)
-Magpul PTS MOE Handguard Kit (Dark Earth)
-Magpul PTS MOE® Stock (Dark Earth)
-WA M4A1 Aluminum Outer Barrel (WP49)
-M4 Flashider (Clockwise) (GP087C)
-WA 6 Position Stock Pipe (WP59)
-WA Steel Stock Ring (WP26)
-WA M4A1 Pipe Ring (WP30)
-WA Hammer Set (WP11)
-WA M4 Metal Sear
-WA M4 Trigger Guard (WP25)
-WA Metal Bolt Stop
-WA SPR Type Cocking Handle (WP52)
-WA M4 Hammer Lock (WP57)
-WA Metal Magazine Catch
-WA Metal Selector
-WA Metal Forward Assist
-WA M4 Speed Buffer (WP154)
-WA Complete Bolt Carrier (Negative Pressure)(WP113)

Specifications :
Length : 780mm / 870mm  (Extended)
Barrel Length:~360mm
Blow Back :Yes
Hop-up : Adjustable
Shooting Mode :Semi/Fully Automatic
Power Source :Gas
Weight (Gram): 2600
Color :Dark Earth  
Magazine Capacity :39
Materials : Metal & ABS & PA
Bullet Type : 6mm BB
Power (Muzzle Velocity) :450 – 467 fps (Green Gas / 0.2g BB)
Manufacturer: G&P

Package Includes :
MAGPUL PTS Licensed G&P M4 Carbine MOE GBB Rifle
MAGPUL PTS Type Full Metal Body + MAGPUL PTS MOE Pistol Grip, MOE Stock, MOE Handguard Kit, MBUS Rear Sight
Original Box

Disclaimer: IMPORTANT NOTE:
1. This NEW WA M4 GBB Airsoft Gun assembly is extremely sophisticated. DO NOT attempt to dissemble the gun without consulting us. No Guarantee will be honored if the gun has been dissembled.

2. HFC134a airsoft gas is recommended. Although HFC22 Green Gas/Top Gas can be used for WA Gas Blow Back, it is NOT RECOMMENDED because the internal mechanism is designed for HFC134a airsoft gas. It may not withstand the prolonged high pressure of higher power gas. Please note No Guarantee will be honored if the gun has been fired with HFC22 Green Gas/Top Gas