G&P M870 Original & MAD DOG Shot Gun

G&P M870 Original & MAD DOG Pump Action Shot Gun

For more detail :
G&P M870 Original:
http://airsoft.tiger111hk.com/p19629/G&P-M870-Original-Type-Shotgun%28w/-Out-Stock-Pin%29%28Shorty%29%28Black%29/product_info.html

G&P M870 MAD DOG:
http://airsoft.tiger111hk.com/p19630/G&P-M870-Mad-Dog-Shotgun%28w/-Out-Stock-Pin%29%28Shorty%29%28Black%29/product_info.html