An arm restraint assembly for an ejection seat may comprise a primary arm configured to pivot about a primary arm pivot joint, a first cable portion coupled to the primary arm, and an attenuator coupled to the first cable portion. The first cable portion may be configured to pivot the primary arm about the primary arm pivot joint. The attenuator may include a housing and a plunger having a head located in the housing. The head of the plunger may be biased toward a first end of the housing.