| 摘要 |
A fore grip with a concealable and collapsible bipod has a tubular recess consisting of two cylindrical cutouts the housing for the legs when concealed and as the housing for a sliding piston that deploys the legs. A release has a compression spring positioned between piston assembly and the bottom of the first cutout and this spring; The legs are connected to the bottom of the piston via a hinge and spring that when released causes the legs to expand outward until fully deployed.
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