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Explanation: Según éstas referencias, "Stockweld" es la parte de la culata del rifle donde se apoya la mejilla para colocar el ojo en la mira, es un tipo de aposicionamiento para disparar.
(1) Stockweld. The stockweld is the 'mating of the
cheek with the stock of the rifle', which places the eye close to and directly ...
(2)... to manipulate the trigger. The handguard is placed against the Marine’s cheek and
a firm stockweld is attained. Short stocking may reduce accuracy of fire.