It looks like Valiant Airsoft is impressed with the Arcturus gas blowback pistols... "I put the Arcturus Tempest & Arcturus Osprey hi-capa pistols through their paces during tactical airsoft and competition format speedsoft rounds to see how they perform.

The tempest is a 4.3 optic ready hi-capa with a fixed compensator, while the Osprey is a 5.1 split slide hi-capa engineered for raw performance."