Heckler And Koch HK Mark23 Operators Manual

21 4. Engage safety lever or depress decocking
lever.
5. Remove magazine and top off with one
additional round.
6. Reinsert magazine insuring that it is fully
seated.
B. Tactical Reloading - used to quickly reload
pistol once firing has begun.
Method A (Slide rearward, chamber empty)
1. Make sure fingers are outside of trigger
guard and pistol is pointed in a  safe
direction at all times!
2. Keep eyes on target area.
3. Depress the magazine release with finger or
thumb of firing hand to drop magazine.
4....

22 WARNING
1. BE SURE OF YOUR TARGET AND WHAT’S
BEHIND IT! Even a .45 caliber projectile can
easily penetrate wood, plasterboard walls, or
a car door, and can travel as far as one mile!
2. Ensure that all parts of your hand and body
are kept away from the muzzle of the pistol 
at
all times!
3. Always wear eye and ear protection where
possible when firing the pistol.
4. Whenever the pistol is dropped on a hard
surface landing on the hammer (cocked or
down), it should be sent to the HK Service
Department...

23
SECTION IV - OPERATION UNDER UNUSUAL CONDITIONS
NOTE
Unusual conditions are defined as any climatic
condition requiring special maintenance of
the pistol. Perform the maintenance outlined
for the climate that most applies to your
operational area. Refer to paragraph 3.9 for
lubrication instructions.
CAUTION
If extensive corrosion is found and cleaning
does not solve the problem, contact  the HK
Service Department.
2.11  Extreme Cold
A. When operating pistol in extremely cold
climates, clean and...

24 2.13  Hot, Dry Climates
A. Dust and sand will get into pistol and cause
malfunctions and excessive wear on component
contact surfaces during firing. Keep the pistol
covered when possible.
B. Corrosion is less likely to form on metal parts in
a dry climate.  Therefore, lightly  lubricate
internal working surfaces only with CLP/LSA.
Do not lubricate external  parts of the pistol.
Wipe any excess lubricant from exposed
surfaces.  Do not lubricate internal components
of magazine.
2.14  Heavy Rain and...

25 SECTION V - MALFUNCTIONS AND STOPPAGES
2.15 Remedial Action - Remedial Action is the
action performed to remedy an unanticipated
interruption of the pistol’s operation and place the
pistol back into operation.
WARNING
During remedial action, make certain the pis-
tol is pointed in a safe direction at all times.
A. Clear the pistol!
B. Attempt to lock slide.
C. Remove magazine.
D. Inspect chamber.
E. Insert fresh magazine
F. Release slide.
G. Attempt to fire the pistol.
If the Mark 23 fails to fire,...

26 trigger. The design of the holster must also not
actuate these controls when the pistol is carried in,
drawn from, or returned to the holster.
2. The holster should not cause the slide to move
(unlock) when the pistol is returned to the holster.
3. Accommodations must be provided in the holster
for any accessories that might be present on the
pistol.
4. Choose a holster designed for the Mark 23.
Returning the Pistol to the Holster -  The HK
Mark 23 must be made “safe” (or cleared) prior to
returning...

27
CHAPTER 3  MAINTENANCE INSTRUCTIONS
SECTION I - TOOLS & EQUIPMENT
NOTE
The service life and performance of your HK
Mark 23 is dependent upon the correct
handling and proper care by the operator.
3.1  Operator Tools and Equipment Required.  At
a minimum, you will require the following materials
to maintain the Mark 23 pistol and its components:
• Cleaning rod with handle and eyelet
• Long handled nylon brush
• Bronze bristle bore brush (.45 caliber)
• Cotton swabs
• Solvent/bore cleaner/CLP
• Cleaning...

28
Figure 10
Removing or Installing the Slide Release
CAUTION
Hold the recoil/buffer spring assembly in place
while removing the slide from the frame. NOTE
Before starting any PM Service procedure
ensure that the Firearm Service Record has
been updated with the correct round count
and any PM Service performed documented.
3.3  Disassembly (Field stripping)
A. Pistol
1. Clear the pistol!
2. Depress slide release and allow slide to move
forward.
3. If applicable, remove any mounted accesso-
ries.
4. Using...

2910-Round Civilian Magazine
1. Using a blunt pointed instrument depress the
locking insert detente located in the floor plate
and hold it there.
2. Place a portion of either hand over the base of
the magazine to control the release of the
magazine spring and locking insert.
3. With the locking detente still depressed,
squeeze the floor plate locking tabs located on
the right and left sides of the magazine.
4. Gradually allow the locking insert and magazine
spring to expand out of the magazine housing....

30 CAUTION
Operator disassembly of the Mark 23 pistol is
now complete. Only trained HK Service
Department personnel may disassemble the
weapon further.
3.4  Reassembly (From field strip)
A. Magazine
12-Round Law Enforcement Magazine
1. Place the magazine follower onto the end of the
magazine spring having the loop at the end of
the wire on the left side of the follower.
2. Insert the follower and the magazine spring into
the magazine housing.
3. Place the locking plate onto the protruding end
of the...