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The spring-powered claw extractor is also contained inside the bolt while the lever ejector is located inside the trigger housing (actuated by the recoiling bolt). Further like the G3 the HK33 also contains a spring extractor and a buffer. The ejector lever was installed in the trigger housing and is actuated by the recoiling bolt.
The lever-type ejector system is contained in the trigger group housing and is actuated with every shot by the recoiling bolt. The weapon has a hammer striker and is fired from the closed bolt position, rare for general purpose machine guns. Firing from a closed bolt contributes to accurate fire, but is disadvantageous for heat dissipation.
The standard HK93A2 utilized a fixed stock while the HK93A3 used a retractable stock. The HK93 series had a redesigned semi-automatic trigger pack and metal shelf installed in the trigger group well that made it impossible for it to fit a full-auto trigger pack. It also had the bayonet mount removed and had different furniture. [citation needed]
The spring-powered claw extractor is also contained inside the bolt while the lever ejector is located inside the trigger housing (actuated by the recoiling bolt). [ 7 ] The chamber has longitudinal gas relief flutes cut in the chamber wall to ease the cartridge case's extraction upon firing.
An extractor also performs the function of an ejector in revolvers. When the striking force applied to the ejector rod is hard and fast enough, the extractor will typically eject the empty case(s) from the cylinder. Some break-action shotguns are also designed to eject empty shells completely out of the chamber when the barrel is opened.
This manual safety is available for most trigger variants. The variants with the optional external ambidextrous thumb safety have similar dimensions compared to the variants without this feature, but weigh approximately 50 g (1.8 oz) more and the safety levers add 3.66 mm (0.144 in) width resulting in an overall width of 38.46 mm (1.514 in).
A spring extractor is installed inside the bolt head and holds the case securely until it strikes the ejector arm and is thrown out of the ejection port to the right of the receiver. The lever-type ejector is located inside the trigger housing (activated by the movement of the recoiling bolt). [27]
The rifle also features a removable and adjustable trigger unit, for further individual fitting of the rifle. The trigger pull can be modified and the whole assembly is removable from the pistol grip. The pistol grip is of a target-style with an adjustable palm shelf. The PSG1's official suppressor is from Brügger & Thomet (B and T). [3]