G3 Assault Rifle Blueprints

Gas Take Off
Fig. 14: Rotary rear sight device

The front sight holder (15/1) with bush for front sight holder (15/2) is set on the barrel and soldered softly to the latter. In addition to that the front sight holder is riveted on the barrel by means of an eyebolt (15/3) which also serves to attach the carrying sling. In the front part of the front sight holder is the snap ring (15/4) which prevents the rifle grenade from slipping off. The uppermost part of the front sight is developed as a protection of the sight. The front sight (15/5) is pushed Into a longitudinal slit and fixed by a clamping sleeve (15/6).

Grenade Launcher Ring

Fig. 15: Front sight holder

Rifle Set Rear Sight

Fig. 16: Rotary rear sight

Fig. 15: Front sight holder

Fig. 16: Rotary rear sight

The sight base (16/1) is welded on the receiver and the sight cylinder (16/2) with Its thread screwed on the sight support (16/3). The two catch bolts (16/4) and catch bolt springs (16/5) are located between the rotary screw socket in the sight support and the sight cylinder. The ball (16/6) and compression spring (16/7) press against the screw socket and lock the sight cylinder In the adjusted shooting distance.

With fix plate (16/8), locking washer (16/9) and binding screw (16/10) the sight support is screwed on the sight base. The rotary rear sight is adjusted by means of the adjusting screw (16/11).

1.5.1.2. Boll assembly (Fig. 17)

1

Bolt head carrier with check lever

8

Clamping pin

2

Cylindrical pin

9

Roll holder

3

Check lever

10

Locking rollers

4

Compression spring

11

Locking piece

5

Bolt head

12

Firing pin spring

6

Extractor spring

13

Firing pin

7

Extractor

Hk94 For Bolt Head Complete
Fig. 17: Locking piece

The bolt lock6 the barrel at the moment of fire, it is guided in the receiver and feeds the cartridge, extracts and ejects the cartridge case, and cocks the hammer.

The bolt head carrier along with the recoil spring tube (1) carries the bolt head (5). On both sides it has studs whereby It slides in the guiding grooves of the receiver. In its longitudinal bore lies the firing pin (13) with the firing pin spring (12) and the locking piece (11). In its recess at the front side it receives the bolt head. At the upper left side of the bolt head carrier sits the bolt head locking lever (3) with bolt (2) and spring (4). The bolt head locking lever retains the bolt head by means of its shoulder at the moment the locking takes place, and a rebounding of the bolt is thus impossible.

The recoil spring tube of the bolt head carrier receives the recoil spring with recoil spring tube and the abutment for the guide ring of the recoil spring. Bolt head and locking piece are seated in the bolt head carrier and are held by the bolt head locking lever at the shoulder. It is bored and milled in order to guide the front part of the locking piece, the firing pin and the locking rollers (10) with their holding plate (9). The lower side of the bolt head Is of rib-type shape. It contains a longitudinal groove for the ejector and milled-out portions to give free access to the lips of the magazine. The semicircular shoulder confines the movement of the inserted bolt head in the longitudinal direction.

The extractor (7) is located at the face of the bolt head. It is held by the extractor spring (6). With its extracting claw it gets hold of the cartridge case at the circular groove.

The locking piece in connection with the locking rollers regulates the locking and unlocking of the bolt head in the barrel extension. Its foremost part, which l8 flattened, slides in the bolt head. Its cylindrical rear has a nose which holds it in the bolt head carrier. The locking piece is drilled along its longitudinal axis for the guidance of the firing pin.

The firing pin fires the cartridge. It is guided in the bolt head, the locking piece and the bolt head carrier. Its collar serves as abutment for the firing pin spring.

1.5.1.3. Grip assembly with trigger mechanism (Fig. 18)

1 Grip assembly

2 Trigger assembly

3 Locking pin

4 Grip

5 Cylinder screw

6 Toothed washer

7 Safety mechanism

Trigger Group Blueprints

The grip assembly (1) serves to the insertion of the trigger assembly (2) and is fixed to the receiver by means of the locking pins (3). The grip (4) Is slipped over the grip assembly and fixed by means of a lens head screw (5) which is checked by a toothed washer (6). On both sides of the grip assembly angular supports are pressed in to receive the trigger assembly. The safety pin (7) fixes the trigger case inserted in the grip. The three-position selective fire lever is situated on the left side of the grip assembly providing for:

S = safe (in white) E = single fire (red) F = burst (red)

A white mark on the face of the safety pin indicates also on the right side of the grip assembly the corresponding position of the selective fire lever.

Fig. 19: Safety mechanism -

left side of the weapon

Fig. 19: Safety mechanism -

left side of the weapon

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L

m s

L

Fig. 20: Safety mechanism -

right side of the weapon

Fig. 20: Safety mechanism -

right side of the weapon m ,

The grip assembly (2) receives all components of the trigger mechanism, hammer, ejector and safety mechanism.

1.5.1.4. Back plate with butt stock

(1) Back plate with rigid butt stock (Fig. 21)

1 Butt stock with holder for buffer housing

2 Butt plate

3 Buffer screw

4 Toothed washer

Safety plate

Tubular rivet

Bush for tubular rivet

Back plate with recoil spring tube

Driving spring

Guide ring

Stop pin

Rivet

Buffer assembly Countersunk screw Toothed washer Locking pins

Rifle Backplate Fixed Butt
Back plate with rigid butt stock

The back plate with butt stock closes the rear of the receiver. It is fixed to the latter by means of two locking pins (16). The buffer assembly (13) is located In the back p!ate. It Is fixed above the holder for buffer housing (1) in front by means of 2 countersunk screws (14), and at the end by the buffer screw (3). The recoil spring tube is riveted In the upper part of the back plate. On the recoil spring tube slide the guide ring (10) and the driving spring (9), which are held by the stop pin (11).

The butt stock (1) permits an adequate handling of the weapon and its putting against the shoulder. On the left side of the butt stock the sling holder is trimmed in. When the weapon is stripped, the tubular rivets (6) serve as place for the locking pins. The butt stock is closed by a plate (2), the two binding springs of which catch above the tube rivets and are thus fixed.

The buffer assembly (Fig. 22)

Barrel Dimension

Fig. 22: Buffer assembly

1

Buffer screw 9

2

Toothed washer

3

Safety plate

4

Countersunk screw

5

Toothed washer

6

Holder for buffer housing

7

Closing screw

8

Buffer spring

9

Buffer bolt

10

Buffer housing

Fig. 22: Buffer assembly

The buffer assembly cushions the bolt after the shot has been fired, and throws it forward again in conjunction with the recoil spring.

(2) Back plate with retractable butt stock (Fig. 23)

Barrel DimensionDisassembly

Fig. 23: Back plate with retractable butt stock

10 11 12

Buffer bolt Buffer spring Buffer screw

Spring loaded gripping lover Cap

Gripping lever Notched ring Spring ring Locking pin

Butt stock Back plate Recoil spring Guide ring Stop pin Rivet

The "back plate with retractable butt stock" can be replaced by the "back plate with fixed plastic butt stock".

The spring loaded gripping lever (10), the gripping lever (12) and the notched ring (13) are placed on the buffer housing. They are held by the spring ring (14). At the rear the cap (11) covers the back plate (2).

Both guide rails are welded on to the convexedly formed butt plate. These two guide rails slide on the buffer housing and are led into the guide groove of the housing at mounted butt stock.

A reinforced butt stock cover stabilizes the butt stock (1) when launching grenades.

The buffer aiaembty (Fig. 24)

1 Buffer screw

2 Buffer spring

3 Buffer bolt

4 Compression spring

5 Bolt

6 Back plate

Fig. 24: Buffer assembly

The compression spring (4) with bolt (5) is located in the buffer scrow (1). When unlocking the butt stock for extraction it is pushed out of its catch by means of the compression spring with bolt (4 and 5).

The plastic handguard (1) covers the barrel from below and facilitates the handling of the rifle when the barrel is hot.

The lining riveted into the handguard serves as protection against heating of the handguard.

The locking pin (2) serves as fastening.

Fig. 25: Handguard

Rifle Blueprint

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1 Magazine housing

2 Follower

3 Follower spring with safety plate

4 Magazine cover

The magazine receives the cartridges and assures the cartridge feed. It Is a straight box-type magazine and has a capacity of 20 cartridges.

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Fig. 26: Light metal magazine

Besides the above described light metal magazine (Fig. 26) a steel magazine (Fig. 27) is available.

1 Magazine housing

2 Follower

3 Follower spring

4 Magazine cover

Fig. 27: Steel magazine

1.5.1.7. Optical sighting devices

(1) Telescopic sight G3 with mount (Fig. 28)

The telescopic sight is used when the Rifle G3 serves as sniper rifle. It enables the shooter to detect and aim at the target by day and In the dusk. The maximum firing range to be focussed amounts to 600 metres. At longer distances of the target it also makes the observation of the enemy and the effect on the target possible.

The telescopic sight (1) is fixed to the mount (2) by two screws (3). The receiver of the weapon is designed to receive a telescopic sight with mount, without any special arrangements. The telescopic sight mount is marked with the corresponding final number of the weapon.

Gun Telescopic Sight
Fig. 28: Telescopic sight G3 with mount

(2) Infra-red night sighting device with mount (Fig. 29)

The infra-red night sighting device is intended to be used in conjunction with the Rifle G3 for aiming and observation at night with infra-red spotlight. On night-operations it enables the shooter to observe and aim at infra-red illumination by means of the infra-red spotlight belonging to it. The infra-red night sighting device (1) Is fixed to the telescopic sight mount (2) by two screws (3).

The receiver of the weapon is designed to receive a telescopic sight mount with infra-red night sighting device without any special preparation. The telescopic sight mount is marked with the corresponding final number of the weapon.

Receiver Blue Print
Fig. 29: Infra-red night sighting device with mount

Training equipment Blank attachment (Fig. 30)

Blank attachment Retaining spring Cylindrical pin Nozzle bolt Cup spring

Training equipment Blank attachment (Fig. 30)

Blank attachment Retaining spring Cylindrical pin Nozzle bolt Cup spring

Blank Firing Feed Ramp
Fig. 30: Blank attachment

The blank attachment (1) is a training device for the firing of blank cartridges. It is screwed on to the barrel instead of the flash hider. The retaining spring (2) in the rear part engages in the barrel shoulder making sure that the blank attachment does not get loose by itself.

In the front part of the blank attachment the nozzle bolt (4) with cup springs (5) is placed, fixed by means of a cylindrical pin (3). The gas pressure can be regulated by turning the nozzle bolt.

The blank attachment has a dull chromium-plated finish to distinguish it from the flash hider.

(2) Plastic training breech block (Fig. 31)

1 Bolt head carrier

2 Bolt head with clutch piece

3 Firing pin

4 Firing pin spring

Prctice Plastic Ammo
Fig. 31: Plastic training breech block

The plastic training breech block is a practice device for the firing of plastic training ammunition. It is inserted into the rifle instead of the normal bolt and is not suited for the firing of service ammunition. The weapon is fed with plastic training ammunition by means of the G3 magazine.

The dimensions of the bolt head carrier (1) correspond to those of the normal G3 bolt. A clutch piece is inserted firmly In the bolt head (2) and connects bolt head and bolt head carrier.

(3) Subcalibre conversion kit (Fig. 32)

1 Subcalibre tube E

2 Bolt E

3 Magazine E

4 Container E

Prctice Plastic Ammo
3
Prctice Plastic Ammo
Fig. 32: Subcalibre conversion kit

The conversion kit is a training device for the firing of ammunition, calibre 5.6 mm x 16 (.22 LR).

Subcalibre tube E (Fig. 33)

1 Subcalibre tube E

2 Locking ring E

3 Bore

4 Milled surfaces

5 Cross slit

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Fig. 33: Subcalibre tube E

Fig. 33: Subcalibre tube E

The long part (1) of the subcalibre tube E is placed in the G3 barrel. The locking ring E (2) on the tube prevents a loosening from the barrel extension at removed magazine and opened bolt. The 6ubcalibre tube E is additionally fixed by means of a bolt on the magazine, engaging in the bore of the tube reception (3).

The parallel sides (4) of the tube prevent it from being distorted in the receiver and barrel extension. The extractor enters into the oblique recesses (5) at closed bolt position. The chamber and the cut-in grooves are in the barrel.

Bolt assembly E (Fig. 34 and 35)

The bolt assembly E locks the subcalibre tube E when firing. It Is guided in the receiver and feeds and ignites the cartridge, extracts and ejects the empty case and cocks the hammer.

t Guide rod E

2 Bolt head carrier E

3 Bolt head E with extractor

4 Recoil spring E

5 Guide sleeve E

6 Disc

7 Buffer spring

8 Safety plate mmMmmntm

Fig. 34: Bolt assembly E

The bolt head E with extractor (34/3) connected with the guide sleeve E (34/5) is inserted In the bolt head carrier E (34/2). On the guide rod E (34/1) the recoil spring E (34/4) with disc (34/6), buffer spring (34/7) and safety plate (34/8) are placed.

The bolt head carrier is activated only when the weapon is cocked.

The bolt head E (34/3) with extractor is placed in the bolt head carrier (34/2).

1 Bolt guide E

2 Extractor

3 Shock absorber

4 Firing prh

5 Firing pin spring

6 Limit stop

7 Guide plate E

8 U-clip a

Blueprint Bolt
Fig. 35: Bolt head E with follower

The extractor (35/2) is detachably inserted in the bolt guide E (35/1), which receives the shock absorber (35/3) and the firing pin (35/4). The firing pin spring (35/5) and the compression spring are received by the shock absorber, the counterbearlng of which is formed as limit stop (35/6). The guide plate E (35/7) Is located on the rear side of the bolt guide, and at the recoil of the bolt it presses the hammer downwards with its ramp placed on the lower side. The U-clip E (35/8) locks the bolt guide above the limit stop.

Magazine E (Fig. 36)

The magazine E contains the cartridges and assures the cartridge feed. It is a bar-type magazine and has a capacity of 20 cartridges.

1 Magazine housing E

2 Follower spring

3 Magazine cover

4 Follower

5 Follower spring with safety plate

6 Magazine cover

A subcalibre magazine housing with filling piece is firmly fitted in the G3 standard magazine housing E (1). The follower spring (5) seizes the subcalibre magazine housing and the magazine cover (6) covers the lower part of the standard magazine housing.

6

Container E (Fig. 37)

The container receives the conversion kit E.

1 Subcalibre tube E

2 Bolt assembly E

3 Magazine E 1

Fig. 36: Magazine E

Assault Rifle Blueprint
Fig. 37: Container E

1.5.2. Operation

The weapon Is loaded, cocked and ready to fire. By pulling the trigger the cocked hammer is released and strikes the firing pin (38/4) which fires the cartridge (38/1) with its point. The powder gas drives the projectile down the barrel (38/5). At the same time powder gasses are forced against the cartridge case. The cartridge case transmits a part of the gas pressure to the bolt head (38/2) and thereby the backward movement is initiated.

1 Cartridge

2 Bolt head

3 Locking piece

4 Firing pin

5 Barrel

6 Barrel extension

7 Locking roller

8 Bolt head carrier

Gun Bolt With Rollers
Fig. 38: Bolt in locked position

Thus the bolt head carrier (38/8) is activated by means of the locking rollers (38/7) and the locking piece (38/3) in the proportion 1:4, on which occasion the locking rollers remain locked until the bullet has left the barrel. The locking rollers emerge from the recesses (39/1) in the barrel extension (38/6) and are pressing against the inclined faces of the locking piece. The locking piece slides back and the locking rollers slip into the bolt head as far as necessary to unlock the bolt.

Spring Recoil Rifle
Fig. 39: Bolt in unlocked position

The locking piece with ita shoulders hits the bolt head carrier and gives additional speed to same. While sliding to the rear the locking lever (40/1) engages from the Bolt head.

Fig. 40: Disengagement of the locking lever lli^Éllllll

Fig. 40: Disengagement of the locking lever

Bolt head and bolt head carrier separate themselves to a distance of about 5 mm but move further backwards together. While the bolt head is moving backwards the hammer is "cockedthe recoil spring compressed, the cartridge case held by the extractor thus hits the ejector and is ejected. In its rearmost position the bolt hits the buffer and is stopped.

At the forward movement the energy of the expanding recoil spring and the expanding buffer spring pushes the bolt forward. The cartridge on top In the magazine Is inserted into the chamber by the front surface of the bolt head. The extractor hooks into the ring groove of the base of the cartridge case. The locking piece with its declining faces pushes the locking rollers outwards until they support themselves in the barrel extension (38/6), which locks the weapon. At the moment the locking takes place the locking lever steps (Fig. 40) in front of the shoulder of the bolt head and prevents the bolt head to rebound.

The weapon is once more ready to fire.

1.5.2.2. Trigger mechanism

1

Bolt head carrier

8

Pressure shank and pressure

2

Firing pin

spring

3

Release lever

9

Catch

4

Anvil for hammer

10

Elbow spring with roller

5

Trigger spring

11

Trigger lever

6

Hammer

12

Trigger

7

Safety pin

Ejector Mechanism For Sako
Fig. 41: Safety mechanism at position 14 S- = safe

The weapon is loaded and the hammer (41/6) is cocked. The safety lever (41/7) put on *SH = safe. In this position the trigger (41/12) is blocked by the safety pin and cannot be pulled.

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  • rorimac brandagamba
    How does the H&K G3 full auto work?
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    How to bolt the buffer in a g3 butt stock?
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    How to fix G3 gun which?
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