Greetings ramlee, and welcome aboard.
About your "belgium light petit":
Belgium is a country that produces shotguns, not a brand name.
Light typically refers to small or lightweight guns.
Petit is the French word for small -- it tells us no more than light.
We need a little more information about your gun.
Is it a new gun, newer gun, old gun, or antique?
Are the hammers internal or external?
What other marking does it carry?
Gauge and barrel length?
Some pictures would help immensely. Include close-ups of the markings.
