I already know what you’re going to say, and yes, Mr Ralston shot his thumb on “Doomsday Preppers” but this is an interesting product. Similar products have been offered in the past but the X-CALIBER allows you to shoot 11 different caliber rounds from a single-shot 12 gauge shotgun using rifled adapters which are made from 7 inches of 4140 chromoly stainless steel.
Calibers include: .22 long rifle, .38 special, .357, 9mm, .45 ACP, .45 long colt, .410 shotgun as well as the base 12 ga shotgun. Additionally, X-CALIBER introduces .223, 7.62×39 and .308 to the mix. This means it could well be of interest to anyone who has an interest in scavenging ammunition. Granted, there are some serious considerations to make for dismounted use due to weight. But, additional inserts could be cached for later use.
You provide the base weapon which is a simple, reliable, break action design. It won’t raise undue interest as it is a commonly found gun, particularly in rural areas. Additionally, the X-CALIBER system will adapt to virtually any break action 12 ga.
The concept is certainly worth a discussion and some readers may consider picking one up.