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BOLT Knight's Armament B4 SR16 URX3.1 Electric Recoil AEG - TAN

SKU: TSI-B4SR16URX3R-120T BOLT AirsoftOut of stock

  • - Officially licensed by Knight’s Armament
  • - Built-in Bolt Recoil Shock System (BRSS)
  • - Full metal receivers and outer barrel
  • - Licensed CNC-machined URX3.1 rail system
  • - Full metal receiver and outer barrel
  • - Rotary wheel one-peice hop-up unit
  • - High torque airsoft AEG motor
  • - Ambidextrous magazine relief
  • - Ergonomic textured handguard and motor grip
  • - Flip-up front and rear iron sights
  • - Adjustable Crane stock
  • - Steel flash hider included


In the Box

Airsoft rifle

high capacity magazine

flash hider

3X rail panels

instruction manual


Operation Electric Automatic
Build Metal Upper / Lower Receiver, Rail System, Mock Gas Block, Outer Barrel, Buffer Tube, Sights / Polymer Stock
Firing Modes Semi-automatic, Full-automatic, w/ Functional Safety
Muzzle Velocity 395 – 415 FPS (w/ 0.20g BBs)
Gearbox Full Metal Version 2 (w/ Bolt recoil system)
Magazine 300rd High Capacity (gear wind-up)
Battery 11.1V LiPo Nunchuck (not included)
Inner Barrel Length 363 mm
Hop-Up Adjustable
Weight 6 lbs
Overall Length 33.5" in. / 35" in. (Retracted / Extended)

California Proposition 65 Warning: Cancer and Reproductive Harm -

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