ASSAULT RIFLE
Calibre 5.56 mm x 45 NATO
HK433 · H
K43
3 · H
K43
3 · HK433 · HK433 · H
K433 · H
K433 · HK433 ·
HK433HK433 ASSAULT RIFLE
HK433 | 5.56 MM X 45 NATO
Modular and compact assault rifle chambered for 5.56 mm x 45 NATO
Different barrel lengths offer the operator a variety of individualisation options based on
the intended purpose. All barrels lengths are interchangeable at the operators or
maintenance level.
11“ 12.5“/318 mm
14.5“ 18.9“/480 mm
16.5“
20“
Black
*Colour:
Flat Dark Earth, optional: green brown
COUNTLESS IDE AS, DEC ADES OF KNOW-HOW
AND SOPHISTIC ATED SOLUTIONS TESTED AND
PROVEN UNDER THE MOST RIGOROUS CONDI-
T IONS WORLDWIDE ARE THE FOUNDATION OF
HECKLER & KOCH‘S PIONEERING WE APON TECH -
NOLOGIES. WE LE AVE NOTHING TO CHANCE.
THE NEW HK433 IS A MODUL AR AND COMPACT
ASSAULT RIFLE CHAMBERED FOR 5.56 MM X
45 WHICH COMBINES THE STRENGTHS AND
OUTSTANDING FE ATURES OF THE G36 AND THE
HK416 FAMILIES OF ASSAULT RIFLES – BOTH
PROVEN WORLDWIDE. IT DOESN’T MAT TER AT
ALL WHETHER YOU ARE RIGHT OR LEF T-HANDED
OR HAVE TR AINED ON A G36 / HK416 WE APON
SYSTEM OR AR-15 PL ATFORM: THE HK433 IS THE
SOLUTION FOR E VERY SCENARIO IMAGINABLE.
MA XIMUM FUNCTIONAL RELIABILIT Y WITH IN-
TUIT IVE HANDLING COMBINED WITH MA XIMUM
MODUL ARIT Y, ACCUR AC Y AND WE APON SA-
FET Y – MADE IN GERMANY.
HK433 · H
K43
3 · H
K43
3 · HK433 · HK433 · HK
433 · HK433 · HK433 ·
FUNCTIONAL ELEMENTS
BUT TSTOCK
The foldable and retractable
buttstock can be locked in 5
positions over an adjustment
travel of 84 mm.
G36 magazine release lever HK416/AR-15 magazine release lever
HK433 ASSAULT RIFLE
MUZZLE THREAD
M15x1 muzzle thread
for mounting a blank firing
attachment.
CHEEK REST
Height-adjustable cheek rest.
OPERATING CONCEPT
Symmetrical and ambidextrous operating concept.
CHARGING HANDLE
Flat charging handle with integrated
forward assist function. Charging
handle convertible from left to right
without tools.
SIGHT RAIL
Monolithic sight rail (STANAG 4694)
with low line of sight.
DISASSEMBLY
Tool-free assembly/disassembly of the major
assemblies with captive pins
(simple cleaning).
GAS PORT
Gas port adjustable
without tools.
SAFET Y LEVER
WITH 45° TRAVEL
Ambidextrous operation without
changing the grip position. Cocking in all
safety positions possible.
SHOULDER PADS
Available with straight,
convex or concave
shoulder pads.
BUT TSTOCK INTERFACE
Foldable buttstock interface
without play.
HANDGUARD
Handguard with HKey interfaces
at 3 and 9 o’clock positions and
Picatinny rail as per MIL-STANDARD
1913 at 6 o’clock position (optional
STANAG 4694) – for mounting tactical
accessories.
BARREL
Barrel length/barrel
version individually
configurable. Interfaces
available such as front
sight adapters, bayonet
adapters or adapters for
rifle grenades.
INTERFACE
Interfaces for grenade launchers,
e.g. GLM/GLM A1 or HK269.
LOWER RECEIVER
Exchangeable lower receiver.
Ambidextrous operating concept for G36
or HK416/AR-15 users.
MAGAZINE/
MAGAZINE WELL
NATO magazine compatibility
as per STANAG DRAFT 4179
ROUND COUNTER
Maintenance-free round counter
integrated in receiver.
Stores information on serial
number, weapon type, year of
manufacture, manufacturer
identification, etc. Data is being
read using RFID technology.
PISTOL GRIP
Modular AR-15 pistol grip interface.
Optional: Ergonomic grip shape with
exchangeable back straps and grip shells.
FLASH HIDER
Tool-free mounting of
suppressors and blank firing
attachments.
HK433 · H
K43
3 · H
K43
3 · HK433 · HK433 · H
K433 · H
K433 · HK433 ·
A
G
D
B
C
E
F
fModular and light design. Compact dimensions.
f Barrel length individually configurable. Easy barrel exchange at the operators or
maintenance level.
f Fully ambidextrous weapon operation for both right-handed and left-handed shooters.
Non-reciprocating charging handle, convertible from left to right without tools.
f Special material properties and surface treatments allow for a reliable and
low-maintenance system suitable for the most extreme conditions.
f Lower receiver with double-sided operating concept for G36 or HK416/AR-15 users.
f Drop safety as per AC225/D14 when on or off safety.
fMonolithic upper receiver with STANAG 4694 profile at 12 o’clock position. Modular Slim
Line handguard with HKey interfaces on 3 and 9 o’clock positions as well as Picatinny rail
as per MIL-STD 1913 on 6 o’clock position.
fMaintenance-free round counter integrated in receiver, no energy supply required.
f Foldable, retractable buttstock with height-adjustable cheek rest. Weapon can also be
used with the buttstock in the folded-in position.
f Tool-free assembly/disassembly of the main assemblies.
f Cocking in all safety positions possible.
fWide variety of accessories available, such as training bolt group, bayonet, suppressor,
drum magazine, brass catcher, blank firing attachment, forward grip or bipod.
f Infrared-absorbing coatings possible.
HK433 ASSAULT RIFLE
HK433 - 11’’ HK433 - 12.5’’ HK433 - 14.5’’ HK433 - 16.5’’ HK433 - 18.9’’ HK433 - 20’’
Calibre 5.56 mm x 45
Operating principle Gas-operated weapon
Bolt system Locked rotating bolt head
Feed mechanism Magazine, 30 cartridges
Cartridge case ejection right
Modes of fire Single fire/full auto
DIMENSIONS
A Max. length 843 mm 881 mm 931 mm 989 mm 1032 mm 1060 mm
B Min. length1
577 mm 613 mm 634 mm 705 mm 764 mm 792 mm
G Buttstock adjustment travel 84 mm, 5 locking positions
D Width 81 mm
E Height2
195 mm
F Sight radius 390 mm
G Barrel length3
280 mm 318 mm 368 mm 421 mm 480 mm 503 mm
WEIGHT*
Weapon without magazine 3250 g 3300 g 3400 g 3500 g 3600 g 3650 g
Magazine, 30 cartridges (full)4
530 g
Magazine, 30 cartridges (empty) 160 g
OTHER DATA
Trigger pull 24 N
Rate of fire approx. 700 rounds/min
Muzzle velocity -v0-4
790 m/s 835 m/s 882 m/s 890 m/s 905 m/s 917 m/s
Muzzle energy -E0-4
1250 J 1390 J 1555 J 1580 J 1650 J 1680 J
Barrel profile/twist Groove/land profile, 6 grooves, right-hand twist, 178 mm
Sights mechanical dioptre sight, foldable/enclosed front sight, various sights can be mounted
1 buttstock folded |
2 without sight |
3 without flash hider |
4 M855 ammunition |
5 Polymer magazine GEN3 |
6 Steel magazine
* Tthe weight may vary depending on the weapon configuration
T E C H N I C A L D A T AF E A T U R E S
SUBJECT TO CHANGE*COLOUR DEVIATIONS DUE TO THE NATURE OF DIFFERENT MATERIALS AND MANUFACTURING PROCESSES POSSIBLE
3
5
1
1
2
4
6
3
5
7
72
6
4
DETAILSHK433 ASSAULT RIFLE
BarrelsThe HK433 gives the shooter six different barrel length
options, allowing him to adjust the weapon to the parti-
cular operational need. As standard, the barrels are equipped with
a further-developed and toolless adjustable gas port for sound
suppressor operation and an interface for the 40 mm grenade launcher
HK269 and the GLM/GLMA1. A front sight interface and bayonet
holder can be mounted on the barrels as an option. All barrels can be
replaced at the operators and maintenance level.
Operating conceptThe replaceable lower receiver defines the desired operating concept,
thus reducing the training expenses for the shooter. Depending on the
shooting training, the shooter can choose between a G36 and an HK416/
AR-15 operating concept. All operating elements are attached on both
sides, arranged symmetrically and can be customized. „Drop-in“
solutions of the lower receiver extend the range of functions of the
weapon with respect to match triggers or trigger assembly combi-
nations.
HandguardThe Slim Line handguard is positivie-locking and connected to the upper
receiver free of backlash. It can be removed without a tool and offers
carrying sling fixing points, modular HKey interfaces on 3 and 9 o‘clock as
well as a continuous MIL-STD-1913 Picatinny rail on 6 o‘clock.
Round counter (optional)The upper receiver has a
built-in maintenance-
free round counter.
The weapons data can
be transmitted and
archived wireless. The
round counter requires
no energy supply. Data is
read using RFID
technology.
HK pistol grip ergonomicsThe grip interface is designed similar to the HK416
weapons family. Pistol grips with exchangeable grip
shells and back straps similar to the P30 and SFP/VP
series of pistols are optional possible.
ButtstockThe ergonomically
foldable and length-
adjustable buttstock
with height-adjustable
cheek rest is free
of backlash and
connected to the
receiver. The length
adjustment has five
locking positions, allowing it to be adjusted dyna-
mically to the personal protective equipment of the
shooter. Moreover, the buttstock can be folded to
the right in each locking position. Even though, the
trigger always remains freely accessible. The case
ejection port is not covered, ensuring the ability to
defend in an emergency in the transport mode.
Magazine compatibilityThe magazine well
according to NATO STANAG
4179 (draft) ensures
interoperability of the
G36 weapon systems with
HK conversion magazine
well, the HK416, and the
commercially available
AR-15 platforms.
ASSAULT RIFLE
H E C K L E R & K O C H G M B HHECKLER & KOCH-STRASSE 1 | 78727 OBERNDORF A. N. | GERMANY
PHONE: +49 (0)742379-0 | FAX: +49 (0)742379-2350
[email protected] | WWW.HECKLER-KOCH.COM
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