BAR or Ghost M4?

[Exceeds]

I'd go with the GM4, sheerly for the superior mobility.

Ghost M4
Freeze: 0.145
Sleep(RoF): 0.245
Reload: 0.30
Reload Sleep: 0.35
Damage: 8
Spread: 0.085
Clip: 20
Automatic: No

BAR
Freeze: 0.20
Sleep(RoF): 0.24
Reload: 0.35
Reload Sleep: 0.55
Damage: 9
Spread: 0.08
Clip: 20
Automatic: Yes

Abot the ROF (rate of fire) for gm4 is 0.245 and bar is 0.24..what does that means? Is gm4 fire rate slower than bar or faster? Tnx!