Heckler & Koch MSG 90 Binoculars User Manual


 
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Description of the assembly groups:
Group 1: Receiver with barrel, cocking device, telescopic sight
mounting and telescopic sight.
The receiver connects the barrel, cocking device and telescopic sight
mounting with the attached telescopic sight, and all other assemblies are
either contained in the receiver or are attached to it.
The barrel is press-fitted into the barrel extension and fixed in place by
pins. The cocking device is located above the barrel and is used for
manually cocking and loading the weapon and for securing the bolt in its
rear-most position.
The magazine catch/release lever is located on the left side of the
magazine well. The bolt locking forward assist fitted behind the ejection
port is used as an aid for the low noise locking of the bolt system.
A telescopic sight, 10x, and with 10 range setting, 100-1000 m, is
attached on a mounting to be fixed in two recesses on top of the
receiver. This mounting also permits attaching of all other types of
daylight and night-sighting devices, which have STANAG fitting
dimensions.
Fig. 3: Receiver with barrel, viewed from right-hand side
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Fig. 35: Insert locking piece
Mount the bolt head on the locking piece so that the sloping surface is
located in front of the bolt head-locking lever.
Fig. 36: Mounted bolt head
Press the bolt head against the bolt head-locking lever up to the bolt
head carrier. Turn the bolt head to the right until resistance can be
perceived and the bolt head-locking lever rests against the next surface.
Pull the bolt head forward as far as it will go until both locking rollers can
fully engage in the receiver.
Turn the bolt head clockwise until stop, i.e. until the sliding surfaces of
bolt head and bold head carrier are flush.