It's made by Remington.
Remington 1100/1187 Stock and Forend 12/16 Gauge Mossy Oak Camouflage 18609.
I don't know about upsetting balance. The plastic and wood cardstock are virtually the same weight.
The plastic stock is hollow and feels hollow . Allowing 100 % of the recoil to be felt in my arthritic shoulder.
Adding weight should help me. Either that or I buy another wood stock and dip it.