To make a 15 rounds mag, my measurement are taken from bottom edge of the S&W circular logo as a reference line.
1.5" on the front and 1.5" on the back.
I used a small hand saw 6" to cut the bottom first
Then the top edge (where I used a masking tape to mark the edge)
I used a clear epoxy glue to glue the bottom to the mag body (light sanding both surfaces to be glued first to ensure smooth and even contact surfaces)
Just 10 min. into drying I used a sharp knife to remove excess glue that oozed out.
Noted that I reassembled the mag follower and already cut the spring about 6 notches.
Hope this help explain it.
1.5" on the front and 1.5" on the back.
I used a small hand saw 6" to cut the bottom first
Then the top edge (where I used a masking tape to mark the edge)
I used a clear epoxy glue to glue the bottom to the mag body (light sanding both surfaces to be glued first to ensure smooth and even contact surfaces)
Just 10 min. into drying I used a sharp knife to remove excess glue that oozed out.
Noted that I reassembled the mag follower and already cut the spring about 6 notches.
Hope this help explain it.