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Here comes a SOMOD shorty version! The Bolt B4 SOPMOD Shorty BRSS FPS-350 Electric Airsoft Rifle! A prototype of MK18 MOD which functions perfectly for close combat. The barrel is shorter than Bolt's SOPMOD version and maintains SOPMOD's functions and qualities.


  • Bolt Enhanced High Torque Motor with Stronger Torque
  • Bolt Steel Enhanced Sector Gear with Thicker Tooth
  • Bolt 1 Piece Steel Enhanced Spur Gear
  • CNC Lightweight Aluminum Piston & Piston Head with Full Steel Tooth
  • Aluminum Tighbore 6mm Inner Barrel
  • Rear Wire Battery Connection
  • Bolt Steel Bevel Gear
  • Reinforced Upper & Lower Metal Receiver/Body
  • T6 6061 Aircraft CNC Aluminum Rail System
  • Steel Flash Hider
  • Aluminum Outer Barrel


  • Bolt B4 SOPMOD Shorty BRSS FPS-350 Electric Airsoft Rifle
  • Magazine
  • B4A1 Carbine Bulleted Breech 6mm .20g


  • Built Material: Aluminum/ABS, Nylon & Glass Fiber and Steel
  • Shooting Modes: Semi, Full-Auto
  • Magazine Capacity: 300 Rds
  • Length: 707mm-792mm
  • Weight: 3000g
  • Hop-up: Adjustable
  • Blowback: Yes
  • Recoil shock: B.R.S.S system
  • FPS: 350 FPS with 0.20g BB
  • Power: 7.4V 22C LiPo or 11.1V15C LiPo or 9.6V NiMH or NiCd
  • Round Per Second (RPS): 16-22 RPS (16-18 RPS with 7.4 LiPo, 18-22 RPS with 11.1 LiPo)
  • Battery Connection: Rear Wire
  • Rail System: T6 6061 Aircraft CNC Aluminum 7 Inch R.I.S. Rail System
  • Color: Black

Electric Airsoft Rifles use batteries as their power source and they shoot very fast. Some Electric Airsoft Rifles come with semi-automatic fire. That means that when you pull the trigger only 1 BB will come out at a time. Other Electric Airsoft Rifles come with full-automatic fire. This means that when you pull the trigger multiple BBs will come out at a time. The longer you hold the trigger down the more BBs come out. Check the description above to see which kind of gun this is and if it is right for you. Electric Airsoft Rifles don't require any pumping or cocking, just simply point and shoot. This is a High End Electric Airsoft Gun. Please only use .20 gram high quality BBs with this item in order to keep it in proper working order. Using anything else as ammunition for this gun will void the warranty and may cause it to jam. Also, to keep your Electric Airsoft Gun working properly, do not fire the gun when there are no BBs in it as it may cause damage to your gun. You must be 18 years of age or older to purchase this Airsoft gun.

Airsoft Rifle

For questions regarding this product please email our friendly customer service team.

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Bolt B4 SOPMOD Shorty FPS-350 Blowback Electric Airsoft Rifle

Bolt B4 SOPMOD Shorty FPS-350 Blowback Electric Airsoft Rifle

$364.95 | Limited Stock Available

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