There are a number of multi-caliber firearms on the market. I've always liked convertible firearms. When I am gun window shopping, this is always a
feature I am on the lookout for. I thought I would start this thread, then, on multi-caliber or convertible firearms. We should discuss and compare
these interesting and versatile guns.
Some notable examples:
The Contender and Encore single shot systems. The Contender is a single shot pistol frame on which a barrel and breech for practically any pistol
caliber (up to .223!) can be mounted. .22, .380, .45LC, whatever. The Encore is a more robust version of the Contender which takes the concept a
step further by including most rifle rounds in it's capability. Thompson Centerfire also manufactures the Dimension line of rifles, a convertible
The AR-15 can be joined to a different upper receiver and thereby modified to fire a number of different calibers. 7.62x39, 9mm, and .22lr to name a
few. I think there's a 5.45x39 upper available too, among others.
Tanfoglio makes the Witness, a convertible handgun. It's an Italian gun imported by European American Armory, so you'll often see the Witness
listed as an EAA product. Replacing the upper slide and barrel assembly to the frame, you can convert the handgun to a number of different calibers,
including: .22lr, 9mm, 10mm, .40S&W, .45acp, .357sig, and.38Super. Not all frames and slides are compatible so be sure and research before you buy.
Also kits will work best if fitted by a gunsmith, so be aware that if you add a conversion kit to your collection, some time with a gunsmith is in
Ruger makes a number of multi-caliber revolvers. The Single Six is a .22 caliber pistol that has exchangeable cylinders, allowing the owner to fire
either .22short, .22long, and.22lr from one, or .22mag from the other. Ruger's Blackhawk Convertible pistols are available in .357, .45, and
sometimes .32. The .45 model will shoot .45lc or .45acp, the .357 will shoot not only .357 or .38 but also almost everything in the 9mm family if I
remember correctly, and the .32 model shoots almost everything in the .32 family. These Rugers are all very reliable firearms, with very good
accuracy for a handgun.
I could go on and on, but this should be enough to get us started. Discuss.