Home / Accessory-Barrels / Diamondback Firearms BBL AR-15 300BLK 10″ PIST You cannot add "Heckler and Koch (HK USA) BARREL VP9 TACT 9MM 4.45" THRD" to the cart because the product is out of stock. Sale! Diamondback Firearms BBL AR-15 300BLK 10″ PIST$8800 Original price was: $8800.$8594Current price is: $8594. Out of stock SKU: 300P10H50B8-R Category: Accessory-Barrels Product ID: 39821 Description Description Pistol-Length Gas SystemHeavy Contour Related products Sale! SilencerCo BARREL BERETTA 92 9MM 1/2X28 $16900 Original price was: $16900.$14408Current price is: $14408. Sale! FN BBL AR-15 5.56MM 16″ M4 CAR $29900 Original price was: $29900.$27441Current price is: $27441. Sale! Springfield Armory XDM 10MM 4.5″ THREADED BARREL $15999 Original price was: $15999.$11881Current price is: $11881. Sale! Springfield Armory XDM 9MM 4.5″ THREADED BARREL $15999 Original price was: $15999.$11881Current price is: $11881.