| 摘要 |
An action rate control system (10) for a gas operated firearm that includes an action sleeve (21) and an action rate control cylinder (11). The action sleeve (21) moves in a rearward direction in response to a volume of combustion gases that are generated during firing of the firearm and diverted from the barrel (23) of the firearm through gas ports. The action rate control cylinder (11) is connected to the action sleeve (21) by a linkage (12-16) that controls movement and slowing of the action sleeve (21) as it approaches a rear limit for its movement. The resistance force generated by the rate control cylinder (11) is a function of the velocity of the action sleeve (21) during its movement. The gas operated firearm includes a barrel (23), a bolt assembly (25), an action system (12-16) coupled to the bolt assembly, and said rate control cylinder (11) coupled to the action system (12-16).
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