Polymer spacer, with 1/2" (12.5 mm) thickness, can be easily fitted to all wood and synthetic field stocks giving the possibility to extend the total lenght. It can be used seperately or in conjunction with the 25mm one.
Results are as follow: +12.5 mm + 25.0 mm = +37,5 mm. It fits only on original Beretta stocks, not cut down or altered.