QuickBoost provides you with four 20mm Hispano Mk. II cannon barrels with the smooth barrel fairing removed and replaced with a vented fairing to cover the recoil spring. Please note that there was quite a bit of variety in the exposed barrel of the 20mm Hispano Mk. II cannon depending on what type of wing it was installed in. The Spitfire Mk Vc and Mk Ve wing had different style fairings. The Hurricane, Typhoon, and Mosquito installations and fairings were also quite different.

Of note is the re-sealable packaging that QuickBoost uses that makes the parts easy to review and then stuff back into the package securely. There are no supplied instructions; you simply swap out the kit provided plastic parts with the new QuickBoost replacements. These QuickBoost parts are specific replacements for the kit parts found in the Tamiya series of Spitfire Mk Vb kits. If you have the new Airfix 1/48 Spitfire Mk Vb kit, the QuickBoost QB 48 635 set is designed specifically for it.

QuickBoost has molded the barrels perfectly in light grey resin with no apparent bubbles. The QuickBoost barrels provide you with no mold seams to sand off on these tiny parts along with the superior detail of actually showing the inside of the barrel as opposed to a flat wall of plastic that you get to attempt drilling.

Be very careful removing the barrels from the resin block as they are a flush fit to the cannon base on the Tamiya Spitfire wing. Although most paints will adhere to resin alone, I would recommend that you wash the parts to remove any remaining mold release and prime them first. They will need to be installed with your favorite CA (super glue) or epoxy, as the normal plastic glues or solvents will not react with the resin.

As you can see from the comparison pictures with the kit parts, this set is certainly an improvement over the kit parts. Highly recommended.

Thanks to QuickBoost and IPMS/USA for the opportunity to review this set.