The Al Sulayyil ballistic missile base is a Saudi ballistic missile facility near the town of Al-Sulayyil, 450 km southwest of the Saudi Arabian capital Riyadh.

Al-Sulayyil RSSMF base was built in low mountain terrain at coordinates: 20°43′07″N 45°35′01″E / 20.71861°N 45.58361°E / 20.71861; 45.58361.

The garrisons themselves are located a short distance apart within a secured complex.

The administrative and support complexes are outside the security perimeter to the south.

The liquid-fueled DF-3A is an early Chinese nuclear intermediate-range ballistic missile bought by Saudi Arabia in 1987 and is believed to have a range of 4,000 - 5,000 km, with a 2,000 kg warhead.