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The K-20 features the popular Krieghoff tapered flat sporting rib known and proven from the K-80. The rib measures approximately 10 mm at the breech and tapers to 6mm at the muzzle in 20 and 28 gauge. The 410 barrels have a slightly narrower tapered rib (9-5mm). A middle track with longitudinal lines flanked by slightly raised borders guide your eyes to the target.
