Remaining compressed air release device for air-soft

An air-soft gun comprising:

• a pistol-grip;
• a high-pressure air canister disposed in the pistol-grip;
• and
• a remaining compressed air release device comprising an externally threaded, cylindrical channel member threadedly secured to an end of the air canister and including an axial channel and a sealing ring;
• a rotatable cap releasably secured to the channel member;
• a biasing member fastened between the cap and the channel member and urging against the channel member;
• a striker including a needle on a first end, an internal passageway, an inlet proximate the needle and communicating with the passageway, an outlet proximate a second end and communicating with the passageway, internal threads on the passageway proximate the second end, and a threaded fastener driven through the cap into the internal threads to secure the cap to the striker;
• wherein the inlet is blocked by the sealing ring in an inoperative position of the remaining compressed air release device;
• and
• wherein a clockwise rotation of the cap causes the sealing ring to unblock the inlet, thereby flowing compressed air in the pistol-grip to the outlet through both the inlet and the passageway.