B4 CQB-R BRSS (Blowback & Recoil) 340FPS

About B.R.S.S. System
B.R.S.S. is a revolutionary design with international Patents Registere
With Tomy Lee&#39s Knowledge, the develop team in Bolt Airsoft has created a powerful recoil system called B.R.S.S. – Bolt Recoil Shock System.B.R.S.S is a revolutionary paten. the B.R.S.S. is utilized an outstanding designation by kinetic energy roduced by piston which then switches to Recoil weight of stock tube and subsequently displacement occurred to reach the outcome of recoil simulator. Such novel devise has been gone though several tests and accordingly BRSS comes into existence!

BOLT Airsoft M4 CQB-R Electric Blow Back AEG 
1/1 Scale High Performance Assembled Electric Blow Back (B.R.S.S. System) Rifle
Semi & Fully Automatic Shooting mode
Full Metal Upper and Lower Receiver
Steel Housing M4 Magazine accommodate 300 Rounds of 6mm Plastic BB
265mm Outer Barrel With 45mm Steel Flash hider
180mm Metal RAS Handguard
Fixed front sight and Quick Detachable Adjustable Rear Sight
Polymer Pistol Grip
Equipped with 6 Position Crane Stock With Rubber Pad

Crane Stock able to store 8.4V 1600mah Crane Stock Type battery (Not include)
Opening the bolt cover to adjust HOP UP

Item Weight (gram)
2770

Length
725mm / 790mm (Extened)

Barrel Length
~245mm

Hop-up
Adjustable

Shooting Mode
Semi/Fully Automatic

AEG Motor
Medium Shaft

AEG Power Source
8.4V

Fit Battery Pack
Crane Stock (Nickel / Li-Po)

Barrel Thread Diameter
14mm

Magazine Capacity
300 Rounds

Bullet Type
6mm BB

Power (Muzzle Velocity)
340 FPS

Package Includes
BOLT Airsoft M4 CQB-R Electric Blow Back AEG (Front Wire, Black)
M4 300 Rounds Steel Magazine
Nylon 6 Position Extendable Stock
Instruction Manual