GOG Freak XL Barrel Front ACP Black PolishedSHOOT THROUGH ANYTHING ALL CONDITIONS A. C. P. stands for All Conditions Performance, The FREAK ACP barrel fronts combine the power of the FREAK XL system with an all new barrel front designed to keep going through the worst field conditions. On the outside four rows of barrel porting help equalize air pressure in the barrel with the outside air for a smooth and quiet transition from acceleration to free flight. On the inside the Freak ACP sports an