Belt lock off mechanism for child car seat

A child car seat configured to be installed in an associated vehicle using a safety belt of the associated vehicle, the child car seat comprising:

• a seat bucket supported on a base, the base including a belt path configured to receive the safety belt of the associated vehicle therealong to affix the base to a seat of the associated vehicle;
• and
• a belt lock off mechanism configured to tension the safety belt of the associated vehicle, the belt lock off mechanism comprising:
• a first arm pivotally connected to the base on a first side of the belt path, the first arm movable into a locked position in which the first arm is configured to tension the safety belt of the associated vehicle;
• and
• a second arm pivotally connected to the base on a second side of the belt path opposite the first side thereof and slidable into and out of the base in a direction substantially perpendicular to the belt path, the second arm configured to engage with and urge the first arm to move into the locked position so as to tension the safety belt of the associated vehicle.