Makita DCG180ZBK 18V LXT Cordless Caulking Gun Sealant, this comes in a Carry Case. also comes with a 5.0ah battery. these are both new, all ready for work. 
 
Compact and lightweight design
Compatible with 300ml cartridge, 600ml sausage pack and bulk sealant
DCG180 supplied with 600ml holder
Variable speed control by trigger
Variable speed control dial
Anti-drip function
LED job light
Trigger lock
360 degree rotating sealant holder.
Plunger rod for bulk sealant can also be used as a suction plunger to pump up sealant into the 600ml holder from bulk container.
Comes with:
Carry case
600ml holder
Specification:
Voltage: 18 v
Max. Push Force: 5000 N
No Load Speed: 28 mm/sec
Vibration K factor: 1.5 m/sec²
Vibration no load: 2.5 m/sec²
Weight (with batteries): 2.9 kg