Depends on which side of the shotgun he's standing on. If he is firing it and is not properly braced, it can certainly knock him backwards. If it is being fired at him, it will knock a full grown man on his butt. If said twelve year old was wearing body armour he would likely still be knocked on his butt.
I need to know the year and value of my light twelve gage semi auto shotgun.
Your serial number indicates that your Browning light twelve auto-5 shotgun was made in the year 1955.
Your serial number indicates that your 16 gauge browning auto-5 shotgun was made in the year 1929.
a couple hunnered
1964
If you are asking about a Browning Auto-5 shotgun,then it was made in the year 1923,with the serial number that you have provided.
Browning.com has a sn function on their web site you can use to look it up.
You must call Browning.
About $50-$75 as a mantle decoration.
Your winchester model 12 shotgun was made in the year 1956,with the serial number that you have provided.
Your serial number indicates that your Browning light weight auto-5 shotgun was made in the year 1960.
Browning.com has a sn search function you can use.