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All things weaponry…
Started by Breakfall, June 04, 2022, 05:56:20 AM
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Renee, who drops once in a while knows so much about firearms......more than anyone else on these forums.
Nice.
Vector R4 that was given to South African teenagers doing border patrol through the 80's...
Operating mechanism
The R4 is a selective fire, gas-operated weapon that fires from a closed bolt. As with the Galil parent weapon, the operating system is derived from that of the AK-47. It uses ignited powder gases channelled through a vent in the barrel to drive a long stroke piston located above the barrel in a gas cylinder to provide power to the operating system. The weapon features a self-regulating gas system and a rotary bolt breech locking mechanism (equipped with two locking lugs), which is rotated by a helical camming groove machined into the bolt carrier that engages a control pin on the bolt. Extraction is carried out by means of a spring-loaded extractor contained in the bolt and a protrusion on the left guide rail inside the receiver acts as the fixed ejector.
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