Picture and version info taken from sarna, the masterunitlist and the Solaris Skunk Werks
| OSR-2C | OSR-2Cb | OSR-2M | OSR-3C | OSR-2L | OSR-2C 'Michi' | OSR-2D | OSR-3D | OSR-4C | OSR-4L | OSR-4D | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Overview | |||||||||||
| Type | Battlemech | Battlemech | Battlemech | Battlemech | Battlemech | Battlemech | Battlemech | Battlemech | Battlemech | Battlemech | Battlemech |
| Tonnage | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
| Engine | 300 Standard | 300 Standard | 300 Standard | 300 Standard | 300 Standard | 240 Standard | 300 Standard | 240 XL | 300 Standard | 300 Standard | 240 XL |
| Top Speed | 81 kph | 81 kph | 81 kph | 81 kph | 81 kph | 64.8 kph | 81 kph | 64.8 kph | 81 kph | 81 kph | 64.8 kph |
| Max. Engine | 360 | 360 | 360 | 360 | 360 | 290 | 360 | 290 | 360 | 360 | 290 |
| Armor | Standard | Ferro-Fibrous | Standard | Standard | Standard | Standard | Standard | Ferro-Fibrous | Ferro-Fibrous | Stealth | Ferro-Fibrous |
| Internal Structure | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Endo-Steel | Standard | Endo-Steel | Endo-Steel |
| Heat Sinks | 15 Single | 14 Double | 15 Single | 15 Single | 15 Single | 15 Single | 15 Double | 10 Double | 15 Single | 13 Double | 10 Double |
| Jump Jets | No | No | 5 | No | No | 4 | No | 4 | No | 5 | 8 |
| ECM Capable | No | No | No | No | No | No | No | No | No | Yes | No |
| MASC Capable | No | No | No | No | No | No | No | No | No | No | No |
| Weapons and Equipment | |||||||||||
| Head | Single Heat Sink | ||||||||||
| Left Arm | Single Heat Sink | SRM-6 | Single Heat Sink | ||||||||
| Left Torso | Large Laser, Medium Laser | ER Large Laser, Medium Laser, Streak SRM-2, Double Heat Sink | Large Laser, Jump Jet x2 | Large Laser, Single Heat Sink | Large Laser, Medium Laser | Large Laser, Medium Laser, Single Heat Sink x3 | ER Large Laser, Medium Laser, Double Heat Sink x2 | Machine Gun, MG Ammo, SRM Ammo, Jump Jet x2 | Large Laser, Medium Laser, Rocket Launcher 15, Rocket Launcher 10 | ER Large Laser, ER Medium Laser, ECM, Jump Jet x2 | Jump Jet x4 |
| Center Torso | Engine, SRM Ammo | Engine, Streak Ammo | Engine, Jump Jet, Single Heat Sink | Engine | Engine, LRM Ammo, Single Heat Sink | Engine, SRM Ammo, Single Heat Sink | Engine, SRM Ammo | Engine, ER Medium Laser x2 | Engine | Engine, Jump Jet | Engine, ER Medium Laser x2 |
| Right Torso | SRM-4, Large Laser, Medium Laser | ER Large Laser, Medium Laser, Streak SRM-2, Double Heat Sink | Large Laser, Jump Jet x2 | Large Laser x2 | Large Laser, Medium Laser, LRM-5 | Large, Laser, Medium Laser, SRM-6, Single Heat Sink | ER Large Laser, Medium Laser, SRM-4, Double Heat Sink | ER Medium Laser, Jump Jet x2 | Large Laser, Medium Laser, Rocket Launcher 15, Rocket Launcher 10 | ER Large Laser, ER Medium Laser, Jump Jet x2, Double Heat Sink | ER Medium Laser, Medium Pulse Laser, Jump Jet x4 |
| Right Arm | Single Heat Sink | ER Medium Laser x2, Double Heat Sink | ER Medium Laser x2, Double Heat Sink | ||||||||
| Left Leg | Single Heat Sink | Single Heat Sink | Single Heat Sink | Single Heat Sink | Jump Jet x2 | Single Heat Sink | |||||
| Right Leg | Single Heat Sink | Single Heat Sink | Single Heat Sink | Jump Jet x2 | Single Heat Sink | ||||||
| Hardpoints | |||||||||||
| Head | |||||||||||
| Left Arm | (Available Actuators: Upper, Lower) | (Available Actuators: Upper, Lower, Hand) | (Available Actuators: Upper, Lower) | (Available Actuators: Upper, Lower) | (Available Actuators: Upper, Lower) | (Available Actuators: Upper, Lower, Hand) | (Available Actuators: Upper, Lower, Hand) | 1 Missile (Available Actuators: Upper) | (Available Actuators: Upper, Lower, Hand) | (Available Actuators: Upper, Lower, Hand) | (Available Actuators: Upper) |
| Left Torso | 3(2) Energy | 3(2) Energy, 1 Missile | 1 Energy | 1 Energy | 2 Energy | 2 Energy | 2 Energy | 1 Ballistic | 2 Energy, 2 Missile | 3(2) Energy, ECM | |
| Center Torso | 2 Energy | 2 Energy | |||||||||
| Right Torso | 2 Energy, 2(1) Missile | 3(2) Energy, 1 Missile | 1 Energy | 2 Energy | 2 Energy, 1 Missile | 2 Energy, 1 Missile | 2 Energy, 1 Missile | 1 Energy | 2 Energy, 2 Missile | 3(2) Energy | 3(2) Energy |
| Right Arm | (Available Actuators: Upper, Lower) | (Available Actuators: Upper, Lower, Hand) | (Available Actuators: Upper, Lower) | (Available Actuators: Upper, Lower) | (Available Actuators: Upper, Lower) | (Available Actuators: Upper, Lower, Hand) | (Available Actuators: Upper, Lower, Hand) | 2 Energy (Available Actuators: Upper) | (Available Actuators: Upper, Lower, Hand) | (Available Actuators: Upper, Lower, Hand) | 2 Energy (Available Actuators: Upper) |