Hand guard arrangement, barrel arrangement and weapon

The present invention relates to a hand guard arrangement for a weapon (1), wherein one shell element (7a, 7b) in a holder (8, 9) is fixable. The holder (8, 9) in this case has at least a spring-loaded holding unit (8), which in a holding position an end (7a '', 7b '') engages and fixes it. The holding unit (8) can be brought against a spring force into a release position, in which the shell elements (7a, 7b) in each case at one end (7a '', 7b '') releases. Here, the spring-loaded holding unit (8) is formed such that they from the mouth side forth mounted on the on the weapon (1) Running (5) can be applied and in the field (4) of the weapon-side end of the barrel (5) fixable is.