BRIEF DESCRIPTION OF THE HK 94 SEMI-AUTOMATIC RIFLE
General The HK94 semi-automatic rifle, cal. 9 mm x 19 is a modern small arm produced in accordance with the most advance manufacturing methods. It permits semi-automatic fire from all positions with the bolt closed. The HK94 is a recoil operated rifle with stationary barrel and delayed roller locked bolt system. The cartridges are fed either from a 15-round or from a 30-round magazine. Note: For reliable function only fully jacketed ammo should be used. Existing models: 1.
Fig. 1 Fig.
Fig.
Fig. 4 Fig.
Assemblies 1 Receiver and barrel, cocking mechanism and sights 2 Bolt assembly 3 Grip assembly and trigger mechanism 4 Butt stock 5 Handguard 6 Magazine 7 Accessories (page 20)
Fig.
DESCRIPTION OF ASSEMBLIES Assembly 1 Receiver with barrel, cocking mechanism and sights The receiver connects the barrel, cocking mechanism and sights. In addition, all assemblies are either contained in the receiver or attached to it (Fig. 7). The barrel is press-fitted into the barrel extension and fixed in place by means of pins. The cocking mechanism is located above the barrel and is employed for manually cocking and loading the weapon and for securing the bolt in its rearmost position.
Fig.
Assembly 2 Bolt assembly The bolt assembly (Fig. 8) consists of the following elements: Bolt head carrier with recoil spring tube (Fig. 9) Recoil spring guide rod and recoil spring (Fig. 10) Bolt head with locking rollers, extractor and extractor spring (Fig. 11) Locking piece (Fig. 12) Firing pin spring (Fig. 13) Firing pin (Fig.
Fig. 8 Bolt Assembly Fig. 9 Bolt head carrier with recoil spring tube Fig. 10 Recoil Spring Guide rod with recoil spring Fig. 12 Locking piece Fig. 11 Bolt head Fig. 13 Firing pin spring Fig.
Assembly 3 Grip assembly and trigger mechanism The grip assembly (Fig. 15) is hinged to the receiver, can be swung down and removed from it. It houses the trigger mechanism (Fig. 16) with hammer, ejector and the safety. The safety axle connects the trigger housing to the grip.
Fig. 15 Grip with trigger housing Fig.
Assembly 4 Butt stock Fixed butt stock The fixed butt stock (Fig. 17) closes the rear of the receiver. It is connected to the receiver by a locking pin. The sling holder is attached to the butt stock by means of tubular rivets, which are also employed for safekeeping of the locking pins when the weapon is field stripped. Retractable butt stock The fixed but stock can be replaced by a retractable butt stock (Fig. 18) when required.
Fig. 17 Fixed butt stock Fig.
Assembly 5 Handguard The detachabel handguard (Fig. 19) encircled the barrel from below. It is attached to the weapon by a locking pin.
Fig.
Assembly 6 Magazine The magazine holds 15 or 30 rounds and is employed for feeding the cartridges to the Rifle. The magazine consists of: Magazine housing Floor plate Follower with follower spring and locking plate (Fig. 20) (Fig. 21) (Fig.
Fig. 20 Magazine Housing Fig. 21 Floor plate Fig.
ACCESSORIES Multi-purpose carrying sling The multi-purpose carrying sling (Fig. 23) is employed for carrying the rifle while permitting the shooter to fire immediately from all positions.
Fig.
Telescoping sight The telescopic sight (Fig. 24) is fixed to its mount by two screws. The receiver of the rifle is so designed that a telescopic sight can be attached to it without any special arrangements. (see pages 46-48).
Fig.
HANDLING AND OPERATION Filling the magazine Hold the magazine in one hand (Fig. 25); with your other hand, place the cartridge in the magazine opening, pressing hte uppermost cartridge under the lip with your thumb. Emptying the magazine Hold the magazine in one hand, with the bullet end of the cartridges pointing toward your other hand (Fig. 26). Using your thumb, push the cartridges to the right, into your open hand.
Fig. 25 Filling the magazine Fig.
SAFETY FEATURES The safety lever is located on the left side of the grip assembly and can bet set at: “O” = Safe and “1” = Fire (Fig. 27 and 28) The position selected is indicated also on the right side of the grip assembly. How to put at safe Set safety lever at “O”. The trigger cannot be squeezed. However, the rifle can be loaded while in “safe” position. Firing Fire: Set safety lever at “1”.
Fig. 27 Safe Fig.
Inserting and removing of magazine Put at “safe”! Insert magazine into the magazine well (Fig. 29) until the magazine catch engages audibly. To remove the magazine, push the magazine catch on the right side of the weapon (Fig. 30).
Fig. 29 Inserting the magazine Fig.
Loading of rifle Put at “safe”! Pull cocking lever rearward with the left hand, engaging it in the recess of the cocking lever housing (Fig. 31). Insert the filled magazine into the magazine well so that the magazine catch locks magazine audibly into position. Allow cocking lever to snap forward (Fig. 32). The rifle is loaded and in “safe” position.
Fig. 31 Retracing the cocking lever Fig.
OPERATING PRINCIPLE The weapon is loaded and cocked, with the safety off. Pulling the trigger releases the hammer, which strikes the firing pin. The cartridge is ignited. The powder gases thus generated drive the bullet out of the barrel. At the same time, these gases also exert pressure on the cartridge case.
Fig.
After the locking rollers have been fully cammed into the bold head, the bolt can continue its recoil movement. In the course of this movement, the empty cartridge case is ejected and the hammer recocked. At the same time, the recoil spring is compressed, which returns the bolt to its forward position. During the course of this process, a new round is chambered from the magazine. The extractor engages the extracting groove in the cartridge case.
Fig.
STRIPPING THE RIFLE FOR CLEANING Engage the safety! Remove magazine. Unload chamber; retract cocking lever and make sure that the chamber is clear. Let the cocking lever snap forward. Unhook carrying sling from front sight holder. Remove butt stock locking pin and put it in the tubular rivets in the fixed butt stock. Slide off butt stock and back plate (Fig. 35). Remove grip assembly. Retract bolt assembly by means of the cocking lever and remove it from the receiver (Fig. 36). Remove handguard.
Fig. 35 Removing the butt stock Fig.
Stripping the bolt assembly Remove recoil spring from recoil spring tube by edging it off in the rearmost position. Rotate bolt head 90° toward your body and detach it from the locking piece. Remove locking piece, firing pin and firing pin spring from the bolt head carrier (Figs. 37 and 38). To assemble the bolt assembly, insert firing pin, firing pin spring and locking piece into the bolt head.
Fig. 37 Removing the bolt assembly components Fig.
REASSEMBLING THE RIFLE Attach handguard. Insert the assmbled bolt with recoil spring into the receiver (locking rollers must rest inside the bolt head). Attach grip assembly (Fig. 39). (Set safety lever on grip assembly on “O”.) Slide fixed or retractable butt stock onto receiver and insert locking pin. Hook carrying sling into the eye on the front sight holder. Check the proper reassembly of the rifle by performing several cocking motions.
Fig.
ADJUSTING THE ROTARY REAR SIGHT Any corrections which may be required when sighting-in the weapon may only be performed by adjusting the rear sight for elevation or windage. Elevation adjustmnet: Insert elevation adjustment tool into the rear sight cylinder (Fig. 40) in such a manner that the wedges of the tool engage the two splines in the cylinder, which contain the catch bolts. Press Phillips-head screwdriver downward into the adjustment tool and hold firmly.
Fig.
Windage adjustment: Correction of left-hand deviation: Loosen clamping screw (Fig. 41). Turn adjusting screw (Fig. 42) counterclockwise, in accordance with the required correction. Then retighten clamping screw. Correction of right-hand deviation: Loosen clamping screw (Fig. 41). Turn adjusting screw (Fig. 42) clockwise until the required correction is obtained. Then retighten clamping screw. Note: Each revolution of the adjusting screw moves the mean strike 5.5 cm (2.
Fig. 41 Loosening the claming screw Fig.
USING THE HK94 SEMI-AUTOMATICE RIFLE WITH TELESCOPIC SIGHT The telescopic sight is mounted as follows: Fig.
Before attaching, swivel the claws (43/1) on the mount outward. Place mount on the rifle from above, keeping the mount tilted slightly to the right and rest its plastic nose against the sight cylinder. Nost the inscription “direction of fire” and the arrow on the bottom of the mount. Press clamping lever (43/2) downward until the catch (43/3) engages audibly. Raise clamping lever as far as it will go. Fig.
Removing the telescopic sight To remove the telescopic sight with mount, push clamping lever downward. Press catch downward with thumb and raise clamping lever again. Tip telescopic sight with mount to the right and remove. Fig.
AIMING Before aiming, set the sights for the appropriate range and select aiming point (target). Now aim at the target by means of the diopter hole and the front sight. Make sure that the target appears to be resting on top of the front sight post and is properly centered and that there is an even circle of light betwen the inner circumference of the diopter hole and the outer circumference of the front sight holder. In this sight picture, the front sight is centered precisely in the diopter hole.
Aiming errors caused by uneven circle of light Impact as with incorrectly centered front sight = left Impact as with incorrectly centered front sight = right
Aiming errors caused by uneven circle of light Impact as with incorrectly centered front sight = high Impact as with incorrectly centered front sight = low
TECHNICAL DATA Calibre Sighting shot Weights Rifle with fixed butt stock without magazine Rifle with retractabel butt stock without magazine Steel magazine for 30 rounds empty Steel magazine for 15 rounds empty Cartridge Lengths Rifle with fixed butt stock Rifle with retractable buttstock Rifle with butt stock retracted Line of sight Barrel Cartridge case 9mm x 19 25 and 100m 6.43 lbs. (2.92 kg) 7.18 lbs. (3.26 kg) 6.00 oz. (0.17 kg) 4.23 oz. (0.12 kg) 185 gr. (12 gr.) 34.59 in. (878 mm) 34.05 in.
TABLE OF CONTENTS General Assemblies Descriptions of the assemblies Accessories Handling and operation Operating principle Stripping the rifle for cleaning Reassembling the rifle Adjusting the rotary rear sight Using the HK94 semi automatic rifle with telescopic sight Aiming Technical Data Page 2 6 8 20 24 32 36 40 42 46 49 52 Teps71
