The ASCOD (Austrian Spanish Cooperation Development) AFV family is the product of a cooperation agreement between Austrian Steyr-Daimler-Puch AG and Spanish Santa Bárbara Sistemas.

The ASCOD family includes a 105 mm gun Light Tank LT 105, a SAM launcher, an AT missile launcher, mortar carrier, R&R vehicle, Command & Control vehicle, ambulance, artillery observer and the AIFV model.
 

In Spanish service the vehicle is called Pizarro, while the Austrian version is called Ulan. An initial 123 Pizarro infantry fighting vehicles and 23 command and communications vehicles were ordered in 1996 and delivered to the Spanish Army by the end of 2002.

The vehicle's main armament is a 30 mm dual-feed, gas operated Mauser MK 30-2 automatic cannon with a 7.62 mm coaxial machine gun. The 30mm gun has a rate of fire of 800 rounds a minute and can fire a range of ammunition including APFSDS rounds.

The hull and turret are constructed from all welded steel armour, which provides protection against 14.5 mm armour-piercing incendiary rounds.

The ASCOD is fitted with an MTU 8V-183-TE22 8-V90 diesel engine, rated 600 hp, and a Renk HSWL 106C hydro-mechanical transmission, and torsion bar suspension.