HDP Or HDR Barrel Kit

This two-piece barrel is machined from high-quality aluminum, bore polished to a bore size of .505" or .495", and coated with Anodize matte black firearm finish for the perfect look to compliment your HDR50 TR50 with the best abrasion and mar resistance available, to assure your Riot Ball extended barrel looks as good as it performs.  Details  Extreme fit tolerances increased precision Diameter (inside) 12,7mm Muffler thread Anti-twist protection attachment length 10cm with additional thread protection cover  Increase performance with further modification very high durability Plug and play  FREE SHIPPING ONLY IN THE USA