An arm restraint system for an ejection seat of an aircraft. The arm restraint system includes a pair of shrouds that are attached to the seat and each contain an outer channel. Extending through each outer channel is a corresponding strap that is coupled to the cockpit and fastened to a ring on the belt of the pilot. When the seat is ejected, the straps are pulled and the shrouds are deployed onto the arms of the pilot. The shrouds extend to a position which captures the wrists of the pilot, thereby preventing both sideward and upward movement of the arms.
An ejection seat buckle assembly and an arm restraint system incorporating such a buckle assembly wherein the buckle of the assembly includes latch and strike portions each having a respective cable guide ring integrally formed therewith. Arm restraint cables passing through the guide rings deploy safety nets or pull the sleeves or arms of an occupant inward toward the occupant's torso or lap to prevent arm injury during seat ejection from an aircraft. In one embodiment, the guide rings are formed integrally with the latch and strike portions by forming generally oval shaped openings in lap belt adjusters mounted to respective latch and strike engagement portions by latch hinges. In another embodiment, the cable guide rings are D-shaped rings integral with the latch and strike of the ejection seat buckle.