Best left to a gunsmith
43-54
No sn provided.
1970serial#72681
Depends on what it is choked.
$60-90, depending on condition.
how to remove and replace trigger guard on Harrington Richardson topper shotgun n
you can buy parts for this gun at www.e-gunparts.com
50-100 USD depending on condition.
$100
Less than $100.
$150 in mint condition.
The serial number on a Topper M48 is typically located on the left side of the receiver, just above the trigger guard. It may also be found on the barrel or the stock, depending on the specific model and year of manufacture. Always ensure to consult the manufacturer's guidelines or a reliable reference for precise details.