KJW M4 R.I.S Gas Blowback Rifle Ver. 2 airsoft BB Mosfet: Yes

Mosfet: Yes

simply select full or semi-automatic firing

Flip-Up Front and Rear Sight

4 model features the modular backstrap system which allows you to change the fit and feel of the grip to better suit your hands

The new spring guide shaft features bearings that prevents the spring from building unnecessary tension by twisting and distorting in its place

KJW M4 R.I.S Gas Blowback Rifle Ver. 2 airsoft BB Mosfet: YesDescription: Weight: 11 lbs 36. 5 x 11 x 4 (in) Capacity: 32 rds Velocity: 450 fps Metal Components: Body, Rail System, Barrel Realistic blowback system 3 rail covers included Railed upper receiver Aluminum outer barrel Flip up front and rear sights Steel and metal alloy internal parts provide great reliability Heavyweight magazine