Master Model is an aftermarket supplier that offers modelers exceptional miniature turned metal parts to add detail to their models. These sets generally are available for builders in all popular scales. This set (AM-48-095) provides parts to assemble highly detailed 1:48 scale Hispano 20mm cannon with uncovered barrels for the Fairey Firefly.
The parts may be used to replace the injection molded ones in the Special Hobby kits without significant surgery. The kits have holes on the wings’ leading edge so it is likely the Master-Model barrels will literally drop in place. (Although the size of the holes may need to be increased to 1.5mm diameter to accept the small extension on the end of the fairings). Note that two types of fairings are provided in the set.