Abstract: The equipment comprises a rear fixing member with a peg whose head is pierced to receive a sling swivel, the head bearing against the outside and the top of the butt, its shank passing into the butt and being retained, free to rotate, in a spacer carried by the rear end of the tube supporting the butt, between the tube and the buttplate, the equipment also comprises a front fixing member fixed to the rear limb of the frontsight support, and formed by ahead pierced by a hole to receive the other sling swivel.