Based on the M4A1, Tokyo Marui's M4 S-system version shows off some new and attractive features for die-hard airsoft fans! SIR foregrip houses a small type 8.4v600mah battery (sold separately) which is very easy to open and change batteries without any tools.
Based on the M4A1, Tokyo Marui's M4 S-system version shows off some new and attractive features for die-hard airsoft fans!
1. Flip up front sight
2. Low profile flip-up rear sight
3. Enhanced butt stock (extend the length of rifle from 768mm to 850mm)
4. Aluminium one-plece barrel
5. Metal skeletal frame for added rigidity and weight
6. Six position LE tactical extendable stock
SIR foregrip houses a small type 8.4v600mah battery (sold separately) which is very easy to open and change batteries without any tools. Four accessory rails and sling swivel allows you to install accessories such as scope, flash light, laser, vertical fore-grip and bipod.