| Name: |
M4 CASV metal body |
| Manufacturer: |
DBoys China |
| Weight: |
4.63kg with box |
| Power: |
350fps with 0.2g BB |
| Metal Gear box: |
Yes |
| Adjustable Hop up: |
Yes |
| TM compatible Hop up: |
Yes |
| Hi-Capacity Magazine: |
Included 300rd |
| Battery and Charger: |
Included 8.4V 1100mah |
It has a special barrel can be converted from standard m4 barrel 14" to 11.5" CQC version.
7MM bearing Gear box.
Systema style Hop-up set.
BI 3581 has a handgard of CASV which can fix the rail on 5 side ( Bottom, left, right, lower lift like\, lower right like/) and 2 to 3 poistions along each side. The advantage of lower right rail makes your thumb easier to reach the back button of hand hold version surefire-flash without the pressure switch.
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