This is model NSF21 from Irregular's 6mm sci-fi line: link
There's no photo of it in the catalog, so I snapped this shot:
This seems to be a companion model to NSF23, the Attack Vehicle. Both are on "roller" wheels (extra-wide wheels) – this vehicle has four on a side.
This is a hefty vehicle – 33mm in length, 19mm in height. It somewhat resembles a Bradley IFV, but several times the size! There are four "headlights" on what I presume is the front, and a curious triangular structure on the top of the hull on the front (sort of looks like it could fold back into the hull). Some blocks on the side might be an anti-personnel belt.
The turret is loaded with weapons: a thin-barreled main gun, a short coaxial gun, what looks like a mini-turret for a machinegun, two side pods that could be missiles or maybe laser weapons, and a rack on the back for five rockets/missiles.
One approach
Equipment Item VSP : BVP Spaces Cost
Vehicle, class 4 20 : 0 20 20
Armor class 4 20 : 36 20 36
Fusion Generation Plant 20 : 36 20 58
Hi-mobility wheeled 20 : 36 20 69
2 class 2 HEL's in
Full traverse turret 20 : 36 12 117
1 class 3 MDC in
Full traverse turret 20 : 36 3 147
with Basic fire control 20 : 36 3 153
1 GMS/L with Basic guidance 20 : 36 1 173
1 APSW 20 : 36 1 173
APFC belt 20 : 36 0 193
Surprisingly, you can get almost the same results by dropping the MDC to class 2, and downgrading from fusion to chemical fueled
Equipment Item VSP : BVP Spaces Cost
Vehicle, class 4 20 : 0 20 20
Armor class 4 20 : 36 20 36
Chemical Fuelled Engine 20 : 36 20 43
Hi-mobility wheeled 20 : 36 20 54
2 class 2 HEL's in
Full traverse turret 20 : 36 12 102
1 class 2 MDC in
Full traverse turret 20 : 36 6 122
with Basic fire control 20 : 36 6 126
1 GMS/L with Basic guidance 20 : 36 4 146
1 APSW 20 : 36 4 146
APFC belt 20 : 36 3 166