Czech T-21 (Tarasnice) 82mm recoilless gun. A smooth-bore weapon, firing a shaped-charge fin-stabilised HEAT round, which is breech-loaded, and fired electrically - as with the P27 anti-tank grenade launcher, the trigger action works a magneto. To cope with the direct and indirect fire capability, the T21 was equipped with ordinary iron sights graduated in 50m intervals and also a telescopic sight graduated at 100 m intervals.