I went to build this little jewel of a kit and noted to my dismay that the gun barrels were warped somewhat. Perhaps the age of the kit as it appeared to be an original issue or possibly being stored in the wrong locations. However my liking the detailing made up for the kit's possible faults and I went on to building per the instructions. I noted that the age of the kit determined the amount of detailing but it still offered a great challenge for building an accurate model. I have completed the gun section for now and have yet to build the trailer which is noted in the instructions as being a universal trailer for other guns of the same type. Other than the thickness of the parts the entire kit is well detailed and I recommend it to experienced modelers.