’m not sure where it started, but the “obrez” has gained a decent bit of recognition among gun folks (particularly gun folks on the internet). The concept is a Mosin-Nagant rifle with the barrel cut down to 4-8 inches and the buttstock lopped off, to make a concealable weapon in leiu of a proper pistol.
Mosin rifles were fairly common and handguns much more difficult to obtain, so the obrez was a way for folks who needed a sneaky gun (be they criminals, partisans, or revolutionaries) to conceal under a coat. Recoil is pretty hefty, and accuracy non-existent, but they work well enough in close quarter.
There are a number of videos on YouTube of folks shooting obrez’s (I really don’t know how to pluralize that…), and this one is a good representation:'
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