Airsoft Extreme

airsoft
Airsoft refers to a class of replica air powered guns that originated from Japan (although the origins go back to the US in the 70s). The power levels are way below those of traditional airguns, but the guns are 1:1 scale copies of original pistols, rather than original designs.
Airsoft is primarily a recreational activity with replica firearms that shoot plastic BBs that are often used for personal collection, gaming (similar to paintball), or professional training purposes (military simulations, a.k.a. MilSim, and police training exercises).
Generalised connotation for the sport of Airsoft.

extreme
extreme point: the point located farthest from the middle of something
Reaching a high or the highest degree; very great
of the greatest possible degree or extent or intensity; "extreme cold"; "extreme caution"; "extreme pleasure"; "utmost contempt"; "to the utmost degree"; "in the uttermost distress"
the furthest or highest degree of something; "he carried it to extremes"
Not usual; exceptional
Very severe or serious