These 20 mm cannons are a straight replacement for the plastic items in your kit. They are made from turned metal and are very nicely done and well detailed. They are a definite improvement over what comes with the kit.
There’s a one page instruction sheet with an image of where to fix them and they should be a straight fit. If you do need to drill a hole to fit it you’re told that you need a 1.50mm hole. Fix in place with cyanoacrylate.
A highly recommended and simple update to your 1/48 Firefly build.
Many thanks to Master Modeler for the review sample.
Paul Tosney – Model Builder International – www.modelbuilderinternational.com