L'Arsenal makes a superb set of Oerlikon twin 20mm AA guns in 1:350 scale. By 1944 twin Oerlikon mounts were replacing single gun mounts, so the ships of the USN could main the same light AA defenses but with less weight and fewer gun crews. The advantage of this L’Arsenal product, AC350-59, is that it is in truly three dimensions. The guns and their pedestals are resin parts, while a photo-etch fret provides the gun mount/shoulder supports, gun sights, gun shields and training wheels. Ten gun mounts are included in a pack.