Heckler And Koch HK Mark23 Operators Manual
Have a look at the manual Heckler And Koch HK Mark23 Operators Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 26 Heckler and Koch manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
41 NOTE Always strike the sight on the sight base, not on the sight blades. e. Retighten the rear sight retaining screw. f. Confirm your battlesight zero by firing the pistol again. 2. Elevation Adjustments -To adjust the vertical (up and down) impact of the projectile follow these steps below: a. Clear the pistol! b. Determine the amount of vertical change, in inches, that is required at 25 meters. Note the index mark on the rear sight and its relationship to the index mark on the slide. c. Loosen and remove the rear sight retaining screw using a screw driver. d. With a small hammer and brass or soft metal drift punch, drift the sight completely out of either side of the dovetail groove. e. Note the marking on the bottom of the rear sight. (The standard sight is unmarked), f. Select a higher or lower rear sight fromFigure 14. g. Using the brass or soft metal punch and hammer, install the new sight into the dovetail groove. h. Align the index marks of the rear sight and slide as noted in step b above. i. Reinstall and tighten the rear sight retaining screw. j. Confirm your battle sight zero by firing the pistol again. 3. Rear Sight Selection - The rear sight is marked with -6, -4, -2, unmarked, +2, +4, or +6. This marking represents the amount of vertical change, in inches, that occurs when that sight is exchanged with the sight originally installed in the pistol. 1) To RAISE the point of impact, install a higher rear sight. 2) To LOWER the point of impact, install a lower sight. Example: The pistol is shooting 4 inches high at 25 meters. We want the pistol to shoot dead-on (point of aim, point of impact). The rear sight
42 removed from the pistol is unmarked (standard). 1) Figure 25 shows that the rear sight marked -4 would lower the point of impact two increments, or a total of 4 inches, from the standard unmarked rear sight removed from the pistol. 2) The -4 sight would be the correct one to install. Obtain the exchangeable rear sight from the kit delivered with the pistols. Raise Point of Impact (Inches) Lower Point of Impact (Inches) -6+6 +4 -4-2No Marking (Standard)+2 Figure 14 C. Zeroing 1. The battlesight zero of the Mark 23 pistol is set by the manufacturer using +P 185 grain JHP ammunition. The pistol is fired from a machine rest at a target positioned 25 meters from thepistol. The pistol is zeroed point of aim, point of impact (POA/POI). This means the impact of the projectile on target will coincide with the point of aim of the sights at 25 meters. 2. Each individual operator of the Mark 23 pistol can battlesight zero their pistol to their unique shooting style by adjusting the sights in accordance with the procedures in subpara- graphs 1 - 3 above.
43 SECTION IV - TROUBLESHOOTING PROCEDURES 3.11 Operator Troubleshooting Procedures PROBLEM SYMPTOM/CAUSE REMEDY 1. Round does not feed Fouled magazine or pistol Clean and lube pistol and magazine Improperly assembled Assemble correctly Incorrect loading procedure used Load pistol in accordance with instructions in operator’s manual Unserviceable magazine Replace magazine2. Round does not chamber Dirty or damaged magazine Clean and lube or replace magazine Obstruction present in chamber Remove obstruction, clean and lube and/or bore chamber/bore Bent or damaged recoil spring, Return pistol to the HK Service Depart- buffer spring, or guide rod. Buffer ment for service spring retainer roll pin drift. * * NOTE Always inspect the buffer spring retainer roll pin for drift. If not firmly seated and centered in the guide rod, return to the HK Service Department for replacement.
44 PROBLEM SYMPTOM/CAUSE REMEDY 3. Slide does not lock Fouled barrel locking block or slide Clean and lube barrel locking block and fully forward slide Dry component parts or pistol Lubricate pistol in accordance with instructions in operator’s manual Damaged or burred slide, barrel Return pistol to the HK Service Depart- locking block, or recoil/buffer ment for service spring assembly. Buffer spring retainer roll pin drift. *4. Pistol does not fire Faulty ammunition Replace ammunition Little or no sign of firing pin strike Return pistol to the HK Service Depart- (indent) on primer ment for service5. Slide does not unlock Faulty ammunition, determined by Check bore for obstruction and replace short recoil ammunition Check for broken or damaged slide, Return pistol to the HK Service Depart- barrel locking block or recoil/buffer ment for service spring assembly. Buffer spring retainer roll pin drift. *
45 PROBLEM SYMPTOM/CAUSE REMEDY 6. Cartridge does not extract Fouled chamber Clean and lube Ruptured cartridge case in chamber Remove ruptured case, clean and lube chamber Fouled or corroded ammunition Replace ammunition Pitted or damaged chamber Return pistol to the HK Service Depart- ment for service Broken or damaged extractor Return pistol to the HK Service Depart- or extractor spring ment for service7. Operating controls do not Damaged or improperly assembled Return pistol to the HK Service Depart- function as described component parts ment for service in operator’s manual8. Accuracy degradation Damaged or missing O-ring Replace O-ring
46 Position No. Item Description Part No.1 extractor 215707 2 extractor spring 215708 3 rear sight retaining screw 215711 4 rear sight, 6.3mm standard (unmarked) 215770 rear sight, 5.5mm (-4)* 215767 rear sight, 5.9mm (-2)* 215768 rear sight, 6.7mm (+2)* 215771 rear sight, 7.1mm (+4)* 215774 rear sight, 7.5mm (+6)* 215783 5 front sight 215721 6 firing pin 215705 7 firing pin spring 215706 8 firing pin block 215709 9 firing pin block spring 215710 10 firing pin retaining pin 986432 11 extractor pin 986432 12 slide 215667 13 barrel 215671 14 O-ring 986429 15 recoil spring guide rod 215724 16 recoil spring retainer 215725 17 buffer spring 215726 18 dual roll pin (buffer spring retainer) 986433 19 buffer spring retainer 215727 20 spring ring 929191 21 washer 215728 22 recoil spring 215729 23 trigger bar, complete 215760 24 trigger bar spring 215734 25 c-clip (decocker) 927062 26 decocking spring 214743 27 decocker 215742 28 roll pin (ejector) 986431 29 ejector 215752 30 sear 215748 31 sear spring 215749 32 sear actuator 215750 33 disconnector 215751 34 sear axle 21575335 roll pin (right safety lever) 986430 36 right safety lever 215744 37 sear block 215754 38 decocking lockout 215745 39 hammer axle 215738 40 hammer, complete 215772 41 hammer rebound spring 215739 42 hammer strut 215740 43 hammer strut spring 215741 44 insert 215731 45 locking bolt 215732 46 frame 215976 47 safety detent 215746 48 safety detent spring 215747 49 left safety lever 215769 50 decocking lever 215766 51 magazine release pin 986432 52 magazine release spring 215737 53 magazine release 215775 54 slide release spring 215733 55 trigger 215735 56 trigger pin 215736 57 slide release lever, complete 215763 58 magazine housing (12-rd magazine) 215778 58A magazine housing (10-rd magazine)* 215672 59 follower (10 & 12-rd magazine) 215779 60 locking plate (12-rd magazine) 215781 60A locking plate (10-rd magazine)* 214853 61 floor plate (12-rd magazine) 215780 61A floor plate (10-rd magazine)* 215673 62 magazine spring (12-rd magazine) 215782 62A magazine spring (10-rd magazine)* 214821 63 locking insert (molded into frame) 64 trigger guard insert (molded into frame) 65 guiding part (molded into frame) magazine (12-rd with LE markings), complete* 215668 magazine (10-rd), complete* 215670 *not pictured Position No. Item Description Part No. 3.12 Parts Listing for Mark 23 Pistol
47 Figure 15 Exploded Diagram HK Mark 23 Pistol 3 5 4 2 1 6 7 8 9 11 10 1918 17 16 15 14 1312 20 21 2223 24 25 26 2732 283534 33 31 30 29 40 36 37 3839 48 4746 45 44 43 4241 49 505152 53 63 54 55 56 57 58 59 62 60 616465
48 CHAPTER 4- AMMUNITION The Mark 23 pistol was designed to operate best using two types of .45 ACP caliber ammunition. They are: A. M1911 230 grain Ball B. Commercially Manufactured 185 grain +P Jacketed Hollow Point (JHP) WARNING The use of incorrect ammunition in the pistol could result in damage to the pistol and/or injury to the operator or bystanders DO NOT USE • Reloaded, remanufactured, or military surplus (foreign or outdated) ammunition • Ammunition loaded in aluminum cartridge cases • Cracked, split, dirty or corroded cases • Ammunition assembled with corrosive primer and/or propellent • Ammunition assembled with projectile damaged or pushed into cartridge case past crimp • Ammunition exposed to oil, grease, water, or direct sunlight. Remove contaminants ifpossible before use and cool down ammunition exposed to direct sunlight or heat. (Exposure to sources of heat could raise the chamber pressure of the cartridge above safe limits). WARNING Heckler & Koch specifically disclaims any re- sponsibilities for any damage or injury that should occur because of, or as a result of , the use of faulty, remanufactured, or reloaded (hand loaded) ammunition, or of cartridges other than those for which the pistol was origi- nally chambered for. NOTE If after reviewing this manual you still have questions, please contact your HK dealer or telephone the Heckler & Koch Customer Service Department. Please address any suggested changes or improvements concerning this manual to HK’s Creative Services Department.