Mark 23 Pistol .45 ACP - Heckler & Koch USA
Mark 23 Pistol .45 ACP - Heckler & Koch USA Mark 23 Pistol .45 ACP - Heckler & Koch USA
a. Clear the pistol!b. Determine the amount of vertical change, in inches, that is requiredat 25 meters.NOTE: The index mark on the rear sight and its relationship to the indexmark on the slide.c. Loosen and remove the rear sight retaining screw using a screwdriver.d. With a small hammer and brass or soft metal drift punch, drift thesight completely out of either side of the dovetail groove.e. Note: The marking on the bottom of the rear sight (the standardsight is unmarked).f. Select a higher or lower rear sight from Figure 14.g. Using the brass or soft metal punch and hammer, install the newsight into the dovetail groove.h. Align the index marks of the rear sight and slide as noted in Step babove.i. Reinstall and tighten the rear sight retaining screw.j. Confirm your battlesight 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 verticalchange, in inches, that occurs when that sight is exchanged with thesight originally installed in the pistol.a. To RAISE the point of impact, install a higher rear sight.b. To LOWER the point of impact, install a lower sight.Example: The pistol is shooting 4-inches high at 25 meters. We wantthe pistol to shoot dead-on (point of aim, point of impact). The rear sightremoved from the pistol is unmarked (standard).a. Figure 25 shows that the rear sight marked -4 would lower thepoint of impact two increments, or a total of 4 inches, from thestandard unmarked rear sight removed from the pistol.b. The -4 sight would be the correct one to install. Obtain theexchangeable rear sight from the kit delivered with the pistols.Figure 14Lower Point of Impact (Inches)-6-4-2C. Zeroing1. The battlesight zero of the Mark 23 pistol is set by the manufacturerusing +P 185 grain JHP ammunition. The pistol is fired from a machine30+2+4+6No Marking (Standard)Raise Point of Impact (Inches)
est at a target positioned 25 meters from the pistol. The pistol is zeroedpoint of aim, point of impact (POA/POI). This means the impact of theprojectile on target will coincide with the point of aim of the sights at 25meters.2. Each individual operator of the Mark 23 pistol can battlesight zero theirpistol to their unique shooting style by adjusting the sights in accordancewith the procedures in paragraphs 1-3 above.SECTION 11 - TROUBLESHOOTING PROCEDURESOperator Troubleshooting ProceduresPROBLEM SYMPTOM/CAUSE REMEDYStoppage Cause RemedyRound does not feed Fouled magazine or pistol Clean and lube pistol andmagazineImproperly assembledIncorrect loadingprocedure usedUnserviceable magazineAssemble correctlyLoad pistol in accordancewith instructions inoperator’s manualReplace magazineRound does not chamber Dirty or damaged Clean and lube or replacemagazinemagazineObstruction present inchamber and/or boreBent or damaged recoilspring, buffer spring orguide rod. Buffer springretainer roll pin drift. *Remove obstruction, cleanand lube chamber/boreReturn pistol to the HKService Depart for serviceSlide does not lock Fouled barrel locking block Clean and lube barrelfully forward or slide locking block and slideDry component parts orpistolDamaged or burred slide,barrel locking block orrecoil/buffer springassembly. Buffer springretainer roll pin drift. *Lubricate pistol inaccordance withinstructions in operator’smanualReturn pistol to the HKService Department forservice* NOTE: Always inspect the buffer spring retainer roll pin for drift. If notfirmly seated and centered in the guide rod, return to the HKI ServiceDepartment for replacement.31
- Page 1 and 2: Mark 23 Pistol.45 ACPWARNING:A fire
- Page 3 and 4: STOP! Know how to clear this pistol
- Page 5 and 6: SECTION 1 INTRODUCTIONThe Mark 23 .
- Page 7 and 8: SECTION 2 NOMENCLATUREthreaded barr
- Page 9 and 10: F. Slide Release - Holds slide to r
- Page 11 and 12: WARNING: The pistol should always b
- Page 13 and 14: G. Chambering - The slide pushes th
- Page 15 and 16: Loading and Unloading the Magazine
- Page 17 and 18: WARNING: (1) BE SURE OF YOUR TARGET
- Page 19 and 20: SECTION 7 MALFUNCTIONS AND STOPPAGE
- Page 21 and 22: Figure 10Removing or Installing the
- Page 23 and 24: Figure 11AAssembly of Magazine Foll
- Page 25 and 26: the magazine catch and that it drop
- Page 27 and 28: 2) Remove all loose fouling from al
- Page 29: Reapply lubrication periodically du
- Page 33 and 34: SECTION 12 AMMUNITIONThe Mark 23 pi
- Page 35 and 36: EXPLODED DIAGRARM OF THE MARK 2335
a. Clear the pistol!b. Determine the amount of vertical change, in inches, that is requiredat 25 meters.NOTE: The index mark on the rear sight and its relationship to the indexmark on the slide.c. Loosen and remove the rear sight retaining screw using a screwdriver.d. With a small hammer and brass or soft metal drift punch, drift thesight completely out of either side of the dovetail groove.e. Note: The marking on the bottom of the rear sight (the standardsight is unmarked).f. Select a higher or lower rear sight from Figure 14.g. Using the brass or soft metal punch and hammer, install the newsight into the dovetail groove.h. Align the index marks of the rear sight and slide as noted in Step babove.i. Reinstall and tighten the rear sight retaining screw.j. Confirm your battlesight 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 verticalchange, in inches, that occurs when that sight is exchanged with thesight originally installed in the pistol.a. To RAISE the point of impact, install a higher rear sight.b. To LOWER the point of impact, install a lower sight.Example: The pistol is shooting 4-inches high at 25 meters. We wantthe pistol to shoot dead-on (point of aim, point of impact). The rear sightremoved from the pistol is unmarked (standard).a. Figure 25 shows that the rear sight marked -4 would lower thepoint of impact two increments, or a total of 4 inches, from thestandard unmarked rear sight removed from the pistol.b. The -4 sight would be the correct one to install. Obtain theexchangeable rear sight from the kit delivered with the pistols.Figure 14Lower Point of Impact (Inches)-6-4-2C. Zeroing1. The battlesight zero of the <strong>Mark</strong> <strong>23</strong> pistol is set by the manufacturerusing +P 185 grain JHP ammunition. The pistol is fired from a machine30+2+4+6No <strong>Mark</strong>ing (Standard)Raise Point of Impact (Inches)
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