The sa81 Krása was an ultra-compact Personal Defense Weapon prototype developed in Czechoslovakia, aiming to fit rifle firepower into a sub-one-foot package. Its most notable feature is a rare rearward feeding mechanism, allowing the barrel to overlap the magazine for extreme compactness. Despite successful testing, the project was canceled in favor of new cartridge programs.
The sa81 KRASA is an ultra-compact Czechoslovakian PDW, weighing 4.6 lbs and measuring 12.4 inches. It features a unique rearward-pulling cartridge feeding system and a selector for safe, semi-auto, and full-auto fire modes. Only two of these rare firearms were ever produced.
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