Panzer Arms M4 Tactical Natural Walnut Stock Assembly - PAM4TNWSA : Have you ever wanted a wood stock Benelli M4? Well today is your lucky day. Panzer has brought to market a very nice Walnut stock set for the Panzer M4. These stock sets include all necessary hardware to install to give your Panzer M4 or M4 clone that vintage appearance. These stock sets are 100% compatible with the Benelli M4 and most other M4 clones that are out on the market today.