ULTIMATE M150 Spring Type_3-9x40 Fires at: 300fps

Fires at: 300fps

The Sopmod sports a unique bolt lock feature which locks the bolt back and stops the rifle from shooting when the last BB is fired

it comes in somewhere between the size of a Glock 17 and 19 making it very versatile in terms of carry options

Perfect for airsoft technicians and other professionals alike

Standard 20mm weaver rail for all kinds of scopes

ULTIMATE M150 Spring Type_3-9x40 Fires at: 300fpsHigh quality spring from ULTIMATE. These are double progressive springs which make sure the torque of the motor is used to its full extent, giving a higher rate of fire. This spring is chromium plated which minimizes the friction of the spring on the piston. Black in colour. Chromium plating also does not wear or chip leaving debris in the gearbox like paint treated springs. M150 produces approx 490fps, suitable for use in UK European games.