The EIFV is the Egyptian Infantry Fighting Vehicle, an interesting hybrid of an M113 armoured personnel carrier mated with a turret from an M2 Bradley infantry fighting vehicle. It was developed by BAE Systems for the Egyptian Ministry of Defence, with design starting in 1995, and production starting two years later.
The M113 chassis is enlarged, with an extra road wheel. The armour is improved to a point where it is proof against 14.5mm AP rounds in all aspects. A more powerful engine is fitted, to compensate for the extra weight caused by the additional armour and turret. It has a crew of three, and can carry seven infantrymen. A standard Bradley turret is fitted on top of the M113 hull, armed with a 25mm chain gun, coaxial 7.62mm machine gun, and twin launcher for TOW anti-tank missiles.
The combination of M113 hull and Bradley turret makes for a cheap and reasonably effective infantry fighting vehicle. The upgraded engine allows the vehicle to keep pace with the Egyptian army’s M1A1/M1A2 Abrams MBTs.
Image source: BAE Systems via Wikipedia (GFDL)