B.R.S.S. system simulates the recoil force of a real rifle by transferring the kinetic energy from piston to the reciprocating weight hammer inside the stock using a high efficient energy transferring mechanism.


Military - M4 - M4 Series


The design of BOLT Military series is referencing on small Caliber firearms used by USA military.



  • This AEG is based on the M4 platform, The outer barrel assembly, handguard, receiver, buffer tube and various trim aspects are made from a combination of Alloy, Aluminium and Steel.
  • The pistol grip and stock is made out of high-density polymer. The Bolt Recoil Shock System (BRSS) provides a weighted recoil each time you pull the trigger.


  • The B4 CQB-R is rear wired, the batteries is housed in the stock.
  • The handguard and receiver have 20mm rails to allow for attachments.
  • At the end of the barrel features a 14mm CCW thread for suppressors. 
  • The Bolt B4 CQB-R is available in 2 colours; Black and Tan 



  • Bolt Recoil Shock Series
  • AR Platform replica
  • 20mm Railed Handguard
  • 20mm Railed Receiver
  • 14mm CCW Thread
  • TM Compatible
  • Steel Gears
  • Rear Wired / Mini Tamiya
  • Adjustable Ironsights
  • Sliding VLTOR Style Stock
  • 300rnd High Cap Magazine
  • Tough Exterior Build Quality
  • Birdcage Style Flash Hider
  • Nylon Fiber Polymers
  • QD Sling Sockets
  • Fabric Patch Included
  • Hard Mechanical Recoil
  • Tough External Build Quality


Main Materials

Metal: outer barrel assembly, handguard, receiver, sights, buffer tube and trim.

Polymer: pistol grip and stock


Compatible Batteries 

7.4v Li-Po Stick

Package Includes
300rnd High Cap Mag
Instruction Manual

Brand Bolt
EAN 5060644102763
Length(mm) 717mm ~ 802mm
Weight (g) 3100
Fire Modes Semi/Full-Auto
Barrel Length (mm) 270
Barrel Bore (mm) 6.00
Rails RIS 7' Rail
Approx. FPS 312 ~ 326
Main Materials Aluminum/ABS, Nylon & Glass Fiber and Steel
Compatible Magazines BLT-BA065B-1 - 140R Mid Cap
BLT-BA002 - 300R Hi Cap
Compatible Batteries / Gas 11.1V 15C 1000mAh
7.4V 22C 1650mAh
Other Info/Specs B.R.S.S.


£374.95 Regular Price
£364.95Sale Price

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    © 2014 by Battle Airsoft UK & Laser Combat Ops Ltd

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