Jazz Streber Taktisch is your go to source for H&K SBR’s. We are certified armorers on most of the Current and past H%K firearms and are Certified Gunsmiths. JST opened its doors on August 8th, 2026 to the public in humble Orange Park, Florida (a suburb of Jacksonville). JST’s owner has over 35+ years firearms experience and has been professionally trained from everything to include Gunsmithing, firearms and self defense.