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Operating
by means of unlocked blowback and firing from the closed-bolt
position, the KEDR family of submachine guns have a 1 mm-thick stamped
sheet-metal receiver that features pinned, riveted and welded
construction. This is a very compact and lightweight design.
Production series specimens carry a black phosphate finish.
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Weight
of the KEDR, empty is only 1,4 kg (about 3,1 pounds). The KLIN is just
slightly more. This is somewhat lighter than even the Czech Scorpion.
With the stock folder, the overal lenght of KEDR is just 303 mm (about
12 inches). With the stock extender, the lenght increases to only 540
mm (21,26 inches). The KLIN is 2 mm longer. Cyclic rates of fire are
800 to 850 rpm with standard 9x18 Makarov ammunition and 1,030 to
1,200 rpm when high-impulse Makarov ammunition is fired in the KLIN
SMG.
The barrel for both weapons is 120 mm (4,7 inches) in length. The bore
has four grooves with a right-hand twist of one turn in 240 mm (9,45
inches). The KLIN barrel has been moved forward in the receiver 2 mm
so that the feed ramp and receiver body could be altered to provide
releable feeding of the high-impulse cartrige's truncated cone bullet
The buttplate, a machined forging, is welded to to the stamped
sheet-metal stock.
The
stamped sheet-metal trigger guard has been welded to the receiver at
the front and rear. Equipped with a pivoting locking bar, the stamped
sheet-metal receiver top-cover has a forward cutout on the right side
for the ejection port.
A machined drop-forging, the bolt body has an integral cocking piece
on the left side. Its floating firing pin has no spring. There is a
spring-loaded claw extractor on the preechface. The fixed ejector is
pinned in place on the left receiver wall. The bolt receprocates on
rails inside the receiver. Two sets of cut-puts in the receiver rails
at the rear permit removal of the bolt group during disassembly.
There is a single-coil recoil spring and conventional guide rod. The
rear and of the guide rod is attached to a plate with a pin that
enters a hole on the rear of the bolt body when the bolt reaches the
end of its recoil stroke. This prevents the bolt group from jumping
off the rails because of the disassembly cutouts at the rear.
The front end of the trigger mechanism is held in place by the
selector level shaft, which also has a trigger block on it. A
protrusion on the selector shaft activates the spring-loaded bolt
hold-open after the last shot has been fired. In the safe position,
the bolt hold-open pin also locks the bolt in the forward position.
Cyrillic selector markings on the receiver are, from top to bottom:
"AB" for full-auto, "OD" for semi-auto and the
character pi and "P" (the letter R in english) for safe.
This is not the same sequence used with the AK series, which is, top
to bottom: safe, semi-auto, full-auto
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