General Illustrations

Nato Ammunition
Fig. 2: G3A3 from the left
Nato Ammunition
Fig. 3: G3A3 from the right

Weapon G3A3 with plastic butt stock and plastic handguard. Handguard fixed at the loading lever housing (free floating barrel).

Nato Ammunition
Fig. 4: G3A3 ZF from the left
G3a3 Zeiss
Fig. 5: G3A3 ZF from the right Weapon G3A3 ZF, same version as G3A3, but with telescopic sight.

Fig. 6: G3A4 from the left

Illustration
Fig. 7: G3A4 from the right

Weapon G3A4 with retractable butt stock, plastic handguard fixed at the loading lever housing (free floating barrel).

1.4. TECHNIC

Calibre

Length of the weapon with rigid butt stock

Length of the weapon with retractable butt stock

Breadth of the weapon

Height of the weapon with magazine

Length of the barrel

Distance between sights

Length of twist, permanently to the righthand

Number of the grooves

Number of the chamber grooves

Weight of the weapon with rigid butt stock, without magazine

Weight of the weapon with retractable butt stock, without magazine

Weight of the aluminium magazine, filled

Weight of the steel magazine, filled

Cyclic rate

Muzzle velocity - V© -Muzzle energy - E0 -Sighting graduation Longest range Normal range of use Safety limit in the firing direction Safety limit on each side Protruding point of the firing pin Distance between bolt head and bolt head carrier

40.15 in. 31.49 in. 1.77 in. 8.66 in. 17.71 in. 22.48 in. 12.00 in. 4 12

f.62 mm x 51 NATO (1020.00 mm) ( 800.00 mm) ( 45.00 mm) ( 220.00 mm) ( 450.00 mm) ( 572.00 mm) ( 305.00 mm)

2559-2624f.ps. 2098-2170 ft. lb. 100. 200, 300 and 4046 yd. 437 yd. 4370 yd. 1093 yd.

up to

(4.52 kg) (0.622 kg) (0.752 kg) - 600 r.p.m. (780 - 800 m/s) (290 - 300 mkg) 400 metres (3700 m) ( 400 m) (4000 m) (1000 m) 1.45 mm 0.5-0.1 mm

1.5 TECHNICAL DESCRIPTION 1.5.1. Construction

Nato Ammunition
Fig. 9: Cross section

1.5.1.1. Barrel with receiver, loading mechanism and sights

Assembly Pictures
Fig. 10: Components, barrel, receiver, loading mechanism and sights

1

Receiver with barrel, loading

housing, front sight holder, and

release lever

2

Barrel

3

Cylindrical pin

4

Front sight holder

5

Flash hider

6

Cap

7

Bush for release lever

8

Release lever

9

Clamping sleeve

10

Contact button for magazine

catch

11

Magazine catch

12

Contact piece for magazine catch

13 Contact spring for magazine catch

14 Pin for stop abutment

15 Axis for loading handle

16 Loading handle

17 Elbow spring for loading handle

18 Contact piece for loading handle

19 Fix plate for sight support

20 Locking washer

21 Binding screw

22 Rotary rear sight

23 Compression spring for ball catch

24 Ball

25 Adjusting screw

The receiver (11/1) contains the barrel (11/2). loading mechanism (11/4) and sights (11/6).

Adjust Front Sight
Fig. 11: Barrel with receiver, loading mechanism and sights

On the right and left side of the receiver grooves are impressed to guide the bolt and to seat the back plate. In front there are two openings to receive barrel extension and barrel, as well as the loading lever housing (11/5).

The back plate closes the receiver at the rear. The lower rear part of the receiver is box-type shaped and provided with 2 tubular rivets to store the locking pins linking the grip assembly and the back plate to the receiver.

At the front part of the receiver are the magazine shaft and the magazine catch, two holes with bushes for the locking pins of the grip assembly.

On the right side of the receiver is the ejection part. The sight base is weeded on the receiver.

The telescopic sight mount is located on the front part of the sight base. On the left and right side of the receiver are 4 recesses for the engaging of telescopic sight mount and clamping claws.

The magazine shaft serves in connection with the magazine catch (10/11) to locate and fix the magazine.

The loading lever housing is inserted in the receiver and spot-welded. A U-shaped bow (11/3) is welded on to the front end of the loading lever housing for the locating of the handguard locking pin.

The loading lever housing has on its left side a longitudinally slotted hole which has at its end an extension to the right side in which the loading lever engages (10/16). In this slotted hole slides the loading lever with its spring (10/17) and support (10/18). With the loading lever and support the bolt is drawn back compressing the recoil spring simultaneously. In front the support and the loading lever are limited by the stop abutment. The stop abutment is attached to the loading lever housing by means of a rivet (10/14). At the left side this riveted pin emerges as a stud. The loading lever engages on it when the bolt snaps forward. The loading lever housing is closed in front by a cap (10/6); a set bolt with spring holds the inserted cap in the front sight (10/4).

In the barrel the cartridge is fused and given motion, direction and twist (right-handed twist). The interior of the barrel consists of the chamber (1) and the rifled part (2). In the latter are 4 grooves,

Fig. 12: Barrel

which have a constant twist to the right. The chamber has 12 flutes which facilitate the extraction of the cartridge case utilizing the gas pressure. The muzzle is provided with a thread where the flash hider (3) or rather the blank attachment can be screwed on. Behind the thread a centering shoulder is located for better guidance while screwing on.

The longitudinal grooves behind the centering shoulder serve as catches for the retaining spring of the flash hider or rather of that of the blank attachmont.

Rash hider (Fig. 13)

The two functions of the flash hider (1) are to hide the muzzle flash and to guide the rifle grenade. The longitudinal slots in its front part split the muzzle gasses. At the rear a retaining spring (2)

Fig. 13: Flash hider is set which engages in the notches and prevents the flash hider or rather the blank attachment from loosening. The flash hider is screwed on until it Is in tight contact with the muzzle of the barrel.

Rotary rear sight device (Fig. 14, 15 and 16)

The sighting device consists of the fixed front sight with front sight holder (14/1) and the rotary rear sight which is adjustable in the vertical and horizontal direction (14/2).

The rotary rear sight (notch) and diopter holes may be turned from position 1 to 4. These figures correspond to distances from 100 to 400 metres. Position MP is an open V-slght, In the positions m2. 3 and Am diopter holes are used. Position 112" serves as basic sight. The open V-sight, corresponding to a distance of 100 m, is an auxiliary sight.

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