The document provides information about operating and maintaining the M14 rifle. It begins with the lesson objective of students gaining a working knowledge of rifle operation. It then details the characteristics, general data, disassembly/assembly process, and care/maintenance of the M14 rifle. The document explains how to take the rifle apart into its main groups and components, and how to reassemble it. It also provides cleaning and lubrication instructions to properly maintain the rifle.

2. LESSON OBJECTIVE
 UPON COMPLETION OF THE LESSON THE
STUDENTS SHOULD HAVE A WORKING
KNOWLEDGE ON THE BASIC OPERATION
OF THE RIFLE.

3. SEQUENCE OF PRESENTATION
 Characteristics
 General data
 Disassembly and assembly of the
weapon
 Care and maintenance

4. CHARACTERISTICS
 Functioning
– Lightweight
– Air cooled
– Gas operated
– Magazine Fed
– Shoulder weapon

5. THE M14 RIFLE
 The selector and bipod are assembled to the
weapon when used for automatic fire but can be
adapted for automatic fire by the installation of
a selector adapter.
 The flash suppressor is designed to reduce
muzzle climb and the amount of dust raised by
muzzle blast.
 The lug on the rear of the flash suppressor is
used for the attachment of a bayonet, a grenade
launcher and a blank firing attachment for the
launching grenade.

6. THE M14 RIFLE
 The spindle valve is used to adjust the opening
of the gas port when the rifle is used for
grenade launching. This prevents gas operation
of the rifle during grenade launching, and
prevents damage to the weapon.
 The hinged shoulder rest provides vertical
control of the butt end of the rifle.
 It has a fixed front sight and an adjustable rear
sight.

7. The M14A1 Rifle
 It has all the features present in the M14 rifle.
 It is designed primarily for automatic fire.
 It has the following additional features that
differentiate it from the M14 rifle.
– Stabilizer assembly to reduce the effect of recoil and
to provide muzzle stability.
– Modified bipod with an additional sling swivel and a
larger pivot pin to accommodate the modified sling.
– A folding front and a fixed rear handguard.
– A straight line stock.
– Rubber recoil pad to reduce effect of recoil.

8. GENERAL DATA
 Weights –
M14 with full mag and cleaning eqpts ... 111/2 lbs
Empty magazine ..................................1/2 lbs
Full Magazine .......................................1 1/2 lbs
M2 bipod assembly ...............................1 3/4 lbs
M14 bipod rifle with full magazine ..........14 1/2 lbs
 Lengths –
Overall length with flash suppressor ........14 1/8 lbs

9. GENERAL DATA
 Operational -
Trigger pull ...........................5.5 lbs
7.5 lbs
Muzzle Velocity ..................... 2880 fps
Cyclic rate of fire ................. 700-750
rds/min

10. GENERAL DATA
 Semi automatic Automatic
2 minutes ...... 40 rds/min 50
5 minutes ...... 30 rds/min 40
10-20 Minutes ......... 20 rds/min 30 up to 15 min
20 minutes .... rds/min 25
30 minutes .... 15 rds/min 20

11. GENERAL DATA
 Range in meters
Maximum .................. 3725
Maximum effective (semi w/ bipod) ..... 700
Max effective (semi w/o bipod) ........... 460
Max effective (auto w/bipod) ............... 460

12. DISASSEMBLY AND ASSEMBLY
 NOTES: Disassembly and assembly of the
weapon should be kept to a minimum consistent
with proper care and maintenance.
 Parts of one rifle may be interchanged with
another except the bolt.
 CAUTION: The bolt shall not be
interchanged with other rifles to preclude
accidents.

13. DISASSEMBLY AND ASSEMBLY
 Steps in the disassembly of the rifle
 Clear the weapon.
 Pull back on the operating rod handle and allow
the bolt to go forward. This operation will ensure
that all operating parts are forward. (NOTE: The
weapon should be disassembled with all the
operating parts forward).
 Separate the three groups of the weapon:
– The firing mechanism
– The barrel and receiver group
– The stock

14. DISASSEMBLY AND ASSEMBLY
 Grasp the rear of the trigger guard with the
thumb end the forefinger of the right hand. Full
downward and outward until the mechanism is
release. Lift but the firing mechanism.
 With the left hand grasp the receiver over
the rear sight. Raise the barrel of few inches,
with the right hand, strike down on the small of
the stock and grasp it. This separate the three
main groups of the rifle.

15. Disassembly of the barrel and
receiver group
 Remove the connector assembly - place the groups on
its left side with the operating rod handle up and the
muzzle away from you. (NOTE: When equipped with a
selector, turn the selector until the side marked "A" is
towards the windage knob).
 Close the bolt; right thumb on rear of connector
assembly, first finger on the sear release bracket and
second finger inside rear the receiver, push forward with
the thumb until the forward and of the assembly can be
lifted off the connector lock. Use the left thumb and
forefinger in lifting the assembly.
 Turn the connector assembly clockwise until the
elongated hole in the connector is aligns with the
elongated stud on the sera release.

16. Disassembly of the barrel and
receiver group
 4Lower the front end of the connector assembly
and lift the rear end off the elongated stud of
the sear release.
 Remove the operating rods spring and the
operating rod spring guides.
– Place the groups on a flat surface, sights down and
muzzle to the left.
– With the left hand, pull toward the muzzle on the
operating rod spring to release the pressure on the
connector lock.
– Pull the connector lock toward you and disconnect the
operating rod spring and guide., Remove the
operating rod and the bolt.

17. Disassembly of the barrel and
receiver group
 Steps in the assembly of the Weapon - Follow
the reverse steps in the disassembly of the rifle:
– Replace the bolt and the operating rod spring and
guide.
– Replace the connector assembly.
– Assemble the three main groups.
 Under normal conditions of maintenance, the
gas system of the rifle shall not be
disassembled; however, under extreme climate
conditions and after a series of operation, it may
be necessary to disassemble the system.

18. Disassembly of the barrel and
receiver group
 disassembly of the gas system and hand guard -
 Loosen and remove the gas cylinder plug. (Use a
combination tool or any appropriate substitute).
 Tilt the muzzle down and remove the gas piston
from the gas cylinder. Unscrew the gas cylinder
lock and slide the lock and cylinder forward so
that the gas port is exposed.
 Slip the front band forward toward the front
sight. Push the handguard toward the front sight
and lift it off the barrel.

19. Disassembly of the barrel and
receiver group
 Assembly - To assemble, follow the reverse
procedure in the disassembly of the handguard
and the gas system.
– Replace the handguard. (NOTE: Do not snap or force
the handguard into its installed position.
– Replace the front band.
– Slide the gas cylinder forward through the front band.
Tighten the gas cylinder lock by hand. Align the loop
with the gas cylinder. Replace the gas piston with the
part toward the barrel and the open end toward the
muzzle. Replace the gas cylinder plug and secure it.

20. Disassembly and assembly of the
M14A1 Rifle
 The procedure outlined for the M14 Rifle
will be followed with the additional
removal and installation of the stabilizer
assembly.

21. Maintenance and preservation
 Cleaning Materials -
– Bore cleaner (cleaning compounds solvent (CR) is
commonly used however, it can also be used on all
metal parts for a temporary one day protection only).
– Hot, soapy or plain hot water is not a substitute for
the bore cleaner and will be used only when no bore
cleaner in available.
– Dry cleaning solvent
– A carbon removing compound is used on stubborn
carbon deposits by soaking the part with the carbon
and brushing it.

22. Maintenance and preservation
 Lubricants -
– Lubricating oil, general purpose is used for
lubricating the rifle during normal condition of
operation, and temperature.
– OE # 10 engine oil may be used as substitute
when no oils prescribed are available.
– Rifle grease should be applied to working
surfaces.

23. Maintenance and preservation
 Procedure in cleaning the rifle.
– The rifle should be cleaned after firing because firing
deposits primer fouling, powder ashes, carbon and
metal fouling. The ammunition has a non-corrosive
primer which makes a cleaning easier; However, it
leaves a deposit which when not remove immediately
may collect moisture and promotes rusting. Upon
termination of firing a bore cleaner compound should
be applied for ease of cleaning.
– Pour a small quantity of bore cleaner in the gas
cylinder plug and insert and rotate the bore cleaning
brush to clean the plug.
– Swab the gas cylinder bore with a clean patch. NOTE:
Do not oil the interior surfaces of the gas cylinder. Do
not use abrasives.
– Clean the gas piston with a bore cleaner then wipe
dry.

24. Normal Maintenance
 The rifle should be inspected daily when use for
any evidence of rust or fouling and to check the
general condition of the rifle. A light coat of oil
should be maintained on all metals parts.
(NOTE: Do not oil the gas piston, interior of the
gas cylinder and the gas plug).
 Do not use a muzzle plug to cover the muzzle of
the rifle. This will cause moisture to collect
inside the bore

25. THANK YOU
AND
GOOD DAY