Tech tutorial by Combat Sport Supply where they show how you can install a tightbore inner barrel... "Airsoft Tightbore Barrels improve Accuracy, FPS and Range, but How Do You Install a Tightbore Barrel? We Guide You Step by Step on How to Properly Install an Airsoft Tightbore Barrel here."

The Brain Exploder puts the Silverback Airsoft SRS R-Hop and Tightbore to a test in his latest video... "After initially testing the rifle for range I was satisfied with it but thanks to a YT viewer of mine by the name of Koree I was swayed towards installing a tightbore ZCI inner barrel (550mm) and the R-Hop mod with some supplies from Clandestine Airsoft and McMaster-Carr. Check out Koree's SRS guide for more information on this mod and others available for this rifle, big thanks."

AirsoftTech23 tests a Fox Custom tightbore inner barrel to find out... "Do Tightbore Barrels Actually Work? Fox Custom 6.02mm Stainless Steel Barrel Review!: Hope you guys enjoyed this review of the Fox Custom 6.02mm Stainless Steel Barrel as well as answering the question of 'Do Tightbore barrels actually work?' DON'T FORGET TO ENTER FOX AIRSOFT'S GIVEAWAY AS WELL AS TO PICK UP ONE OF THESE BARRELS ALONG WITH IT."

Tightbore inner barrels from SHS Airsoft are back in stock at Airsoft Atlanta... "Brand new SHS 6.03mm tightbore barrels are in stock starting at $18.99-$46.99 each. These are stainless steel, custom, super smooth inner bore barrels for AEGs, closer to a spec of 6.01mm. These are not the older brass barrels, but a newly updated version for use in AEGs.  247mm - 650mm length barrels available.