General Atomics MQ-9 Reaper - version overview
YMQ-9A Predator B - 2001, prototypes of an enlarged version of the MQ-1 Predator with a TPE331-10 turboprop engine, six suspension points under the wing
MQ-9A ReaperMQ-9A Reaper - designation of production machines; 300+ units.
MQ-9A Reaper ER - 2015, extended-range variant with reinforced landing gear; "wet" wing tested but probably not used on production machines; 38? pcs.
MQ-9B SkyGuardian - 2016, a variant designed to operate in civil airspace and comply with European aviation regulations.
MQ-9B SeaGuardian - 2020, a variant of the SkyGuardian equipped with maritime radar for vessel identification and capable of launching sonobuoys
The Protector RG.1, a SkyGuardian variant for the RAF capable of carrying 18 Brimstone 2 missiles.
Mariner - 2006, demonstrator of the Navalised Reaper designed for shipping surveillance, border security etc.
MQ-9 Guardian - Navalised variant operated by the US Customs and Coast Guard. Differences against Mariner and SeaGuardian unknown. 3? pcs.