Armament Specialists perform repair of Small Arms, Heavy Arms or
Turret Arms.They have to prepare FFI (Fit For Firing)certification
and maintenance reports on the serviceability of the weapons they
are supposed to repair.
Armament Specialists may be posted to individual units or be posted
to Maintenance Bases where theywill do higher level repair jobs
than those in the combat units.
Small Arms: Your basic assault rifles, MGs, pistols, anti-tank
weapons, mortars etc..
Heavy Arms: Artilllery gun systems .
Turret Arms: Maintenance of turret-based weapons like the M242
Bushmaster 25mm gun, CIS40/50 turret(HMG and Grenade Launchers),
OWS(Overhead weapon system, a Typhoon gun.)
That's about it..do note that regular Armament Specialists will be
cross-trained in all the above mentioned.
For more info..Army
Logistics