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* T M 9 - 1 0 0 5 - 2 2 2 - 3 5
echnical haanual
o. 9-1005222-3+ 1
HEADQUARTERSDEPARTMENTOF THE ARMY
Washington, D. C., 14 Febw y 1966
CHAPTER 1.Section I.
II.CHAPTER 2.CHAPTER 3.CHAPTER 4.
CHAPTER 5.Section I.
II.III.
CHAPTER 6.CHAPTER 7.CHAPTER 8.APPENDIX I.
II.
P a r a g r a p h s
INTRObUCTIONGeneral ......................................... l-l-l-3Description and data ............................... 1-4, 1-5PARTS, SPECIAL TOOLS, AND EQUIPMENT .............. 2-l-2-3INSPECTIONS ................................... 3-1, 3-2TROUBLESHOOTINGANDGENERALMAINTENANCE ......... 4-l-4-3MAINTENANCE OF RIFLESMaintenance ..................................... 5-1Gaging headspace ................................ ; 5-2Timing rifle ..................................... 5-3FINAL INSPECTION ............................... 6-1, 6-2REPAIRSTANDARDS .............................. 7-1, 7-2OVERHAUL PROCEDURES ........ ........ ........ .. 8-1REFERENCES.. ........................................REPAIR PARTS AND SPECIAL TOOL LISTS. .....................
RIFLE, CALIBER .30, Ml, MlC (SNtPERS)AND ium (SNIPERS)
1189
10, 11
1255555657585960
l hia msnud slgersedes TM 91OO!F22P2SP, 20 2eWmber lB61.
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CHAPTER 1
INTRODUCTION
Section I. GENERAL
l=l. fcopca. Th is ma nu al is published for t he in-
form at ion an d gui dan ce of personnelresponsible for direct support, generalsupport, and depot ma intena nce of th e cal-iber .30 rifles Ml, MlC (Sn iper%) an dM1D(Snipers).
b. TM 9-1005-222-12P/2 cont ain s alistof repa ir par ts an d special tools allocat edto us ing orga nizat ions. FM 23-5 cont ain sopera ting and lubricat ing inst ru ctions forthe materiel .
c. Use DA Form 2028 for r eport ingerr ors, omissions and recomm endat ionsfor impr ovement an d forwa rd direct to:
Commanding GeneralHeadquartersU.S. Army Weapons Comm an dATTN: AMSWE-SMM-P
Rock Island ArsenalRock Island, Illinois 61201
1-2. Maintenance Allocation
See TM 9-1005-222-12P/2.
l-3. Forms, Records, and Reports
a Authorized Forms. Refer to DA Pa m310-2 an d TM 38-750.
b. Reports of Accidents.(1) Injury to personnel or damage to
materiel. Refer t o AR 385-40.(2) Ammunition, accidents and mal-
functions. Refer t o AR 700-1300-8.
c. Report of Unsatisfactory Equipmentor Materials. Refer to TM 38-750.
Section II. DESCRIPTION AND DATA
1-4. Description 1-5. Tabulated DataThe rifles Ml, M lC (Sn ipers) an d MlD
(Snip er s) (figs. l-l, l-3 an dl-5) ar e gas -Data necessar y for direct, general su p-
operated, clip-fed, air-cooled, semiauto-port , and depot ma intena nce ar e listed
ma tic sh oulder weapons. Th e rifles ar ebelow.
designed t o accomm odat e eith er bayonet-a Rifle Ml.
knife M5 or M5A1, th e grena de lau ncherTr igger pu ll, ma ximu m - - - - - - - - 7.5 lb
M7A3 an d grenade laun cher sight Ml5 an dTr igger pu ll, min imu m - - - - - - - - 5.5 lb
wint er t rigger kit (fig. l-7). For conven -b. Rifle MlC (Snipers) and MID
ience of ma intena nce and repair , th e rifles (Snipers).ar e divided int o groups an d assemblies as Tr igger pu ll, ma ximu m - - - - - - - - 6.5 lb
indicated in figur es l-2, l-4 an d l-6. Tr igger pull, min imu m - - - - - t- - 4.5 lb
1
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B - LEFT REAR VIEW
Figure 1-I. Cal iber .30 r i f le M.1 - l e f t a nd r igh t r ear v iews .
WE 10435
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IE 12644
Figure l-8. Caliber .30 rifle Ml, M.lC Snipers) and MID (Snipers) - major groups and assemblies.
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THREE-QUARTER RIGHT-REAR VIEW
THREE-QUARTER LEFT-REAR VIEWRA PO I34666
Figure l-3. Caliber .30 rifle MlC (Snipers) - left and right rear views.
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3
WE 12646
Figure 1-6. Caliber .30 rifle M.lD ( S n i p e r ' s ) -major groups and assemblies.
INTER TRIGGER ASSEMBLY
Figure l-7. Caliber .36 rifle ,4fl with winter trigger kit installed - right front view -
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CHAPTER 2
PARTS; SPECIAL TOOLS, AND EQUIPMENT
2-1. Repair Parts
Refer to appendix II.
2-2. Common Tools
Standard and common tools are author-
ized by tables of allowances and tables oforganization and equipment.
2-3. Special Tools and Equipment
Refer to appendix II.
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c 1, TM 9-1005-222-25
CHAPTER 3INSPECTIONS
3-1. GeneralWa r n i n g : Before inspection, determine that
the weapon ia pointed in a safe direction, that livemuada or obstructions ar e NO T present in thebore or chamber, and that the ammunition is notin position to be loaded. Do not pull the triggeruntil the weapon haa been cleared.
Make an overti inspection of the weapons forappearance, condition, and operation Manuallyfunction, using dummy cartridgea.
3.2. Inspe c tion of Mate riel in the Hands ofTroops inthe Field
a. &wraL Refer to AR 760-S.b. S fi.
(1) Inspect parta for wear tb8t would impairflmcti oniIlg of weapons.
(2) Check to be certain that 811 cleaning andpreservativ e matarii, authorize d by
pertinent manu&, 8re available.
3-3. Inspec tion of Materiel to Ac c omp any
Troop s Ove rsea s
a. t3twraJ. This inspection is conducted on
materiel in alerted unib scheduled for overseaduty to insure that such materiel will not becomeunserviceable or worn out in a relatively shorttime. It prescribes a higher percentage of romain-ing usable life in serviceable materiel to meet aspecific need beyond minimum serviceabili ty.
b. S pee@. Refer to table 3-l for serviceabilitystandards.
Table S-l. SerciceabiZity Standard, for Rijle, Cdiber JO, Ml, YlC (Snipers) and MlD (Sniperu)
Breech bore (fig. 5-31)___.
Gas cylinder diameter(fig. 5-23).
Barrel diameter (fig. 5-32)_
Piston diameter (fig. 5-14) _
Firing pin protrusion(fig. S-17).
Timing (fig. 5-36) _ _ __ _ _ _ _
Trigger pull (fig. 5-S)_____.
Firing pin cam location(fig. 5-34).
-
--
-
---In thehanda f troop
GAGE, HEADSPACE 7319964_________Maximum 1.950
BOLT, FIELD TEST 6046302____ _ _ _ _ __GAGE, BREECH BORE 5564343____ __
Maximum 0.310GAGE, PLUG, GAS CYLINDER
DIAMETER 7319919.Shoulder of gage must be flush or above___.GAGE, RING, PLAIN, No-go 7319918_
Minimum 0.5991GA GE, SNAP, PLAIN, ADJUSTABLE
7319911.Minimum 0.525
GAGE, FIRING PIN PROTRUSION7274736.Minimum 0.044Maximum 0.060
GAGE, TIMING 7319920______________.Bolt must release when bottom notoh in
gage is flush or below.FIXTURE, MEASURING, TRIGGER
PULL 7274758.
MlMinimum 5.5 Ibe______________________ ._Maximum 7.5 lbs_______________________.
MlC-MID
Minimum 4.5 lbs_______________________.Maximum 6.5 lbs_______________________.GAGE, RECEIVER 77QQ7OQ___________.Plug positioned flush or below____________.
-.
_a_
I
- --- .__.____ __ --To accompnny troops overma
~-GAGE, HEADSPACE 7319954.
Maximum 1.950BOLT; FIELD TEST 6046302.GAGE, BREECH BORE 5564343.
Maximum 0.306GAGE, PLUG, GAS CYLINDER
DIAMETER 7319919.Shoulder of gage must be flush or above.GAGE, RING, PLAIN, No-go 7319918.
Minimum 0.5991GAGE, SNAP, PLAIN, ADJUSTABLE
7319911.Minimum 0.52B
GAGE, FIRING PIN PROTRUSION7274736.Minimum 0.044Maximum 0.060
GAGE, TIMING 73192120.Bolt must release when bottom notch in
gage is flush or below.FIXTURE, MEASURING, TRIGGER
PULL 7274758.
MlMinimum 5.5 lbs.Maximum 7.5 lba.
MIC-MID
Minimum 4.5 lbe.Maximum 6.5 lbs.GAGE, RECEIVER 7799709.Plug positioned flush or below.
TAO0 1705A 9
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C 1 , T M 9 - 1 0 0 5 - 2 2 2 - 3 5
CHAPTER 4TROUBLESHOOTING AND GENERAL MAINTENANCE
4-l. TroubleshootingRefer to table 4-l.
rdsucn&lcn
Cartr idge clip inserts withdifllculty.
Short recoil________ ______
Bolt fails to close tightly _ _
Bolt does not release whenclip is latched.
Bolt released before clip isbtehed.
Table 4 - l . Troubleshooting
Probable esum
RI FLE M l, MlC (S nipers) AND MI D(Snipers)
Deformed clip________________________-_.
Broken ejector___.__________.________-_.Int erference between bullet guide and
follower arm.Undersised or out of round operat ing r od
piston.Over sised gas cylinde r, _______________-_.Undersised barr el at gas por t_ _ _ _ _ _ _ _ _ _ _ _ _Carbon in gas cylinde r________ ________--.Carbon or foreign matter in gas port of
barrel.Oper ating rod assembly binding_- - _ _ _ _ _ - -.
Leak in gas cylinder lock acrew with valve.Defective helical spring (oper ating rod) ___ __Boltbindlng_____._____________________.Distort ed or damaged receiver____________Extr actor does not open enough to pass over
r im o f & r i d g e .Oper ating r od assembly binding___________
Weak or broken helical spring (operatingrod).
Rust or dirt in chamber_,_________..______Damaged cartr idge, or frosen ejector___ _ - _ -Damaged or deformed bolt and/or r eceiver.
Insufficient headspace_________________-_.
Insufficient radii on opera ting rod catch oroperating rod hooks.
Bullet guide low at accelerator bearing point _Worn or broken clip latch________________
W orn or brok en helical spring (latch) _ _ _ _ _ _
Replace.
Replace.Replace bullet guide.
Replace operating rod assembly.
Replace.Turn-in weapon for replacement.Clean.Clean.
Replace opera ting rod assembly if damaged,or relleve wood from gun stock assembly,
where operatlng rod binds on wood.Replace gas cylinder lock screw wlth valve.Replace helical spring (operating rod).Remove burs from bolt.Repair or turn in for replacement.Clean bolt assembly.
Rephoe operat ing r od or relieve wood fromstock assembly where operating rod bindson wood.
Replace helical spring (operating rod).
Clean barrel chamber.Repair or replace ejector.Replace bolt or turn in weapou for replaee-
ment.Replace bolt assembly by selective At or
t&n in weapon for replacement.Repalr or replace opera&g rod catch or
operating rod assembly.Replace.Replace.
Replace helieal spring (latch).
10 TAO0 11OSA
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r
Mdfunation
Table 4-l. Troubleshooting-Continued
Bolt fail8 to be held rearwardafter fir ing last r ound of clipand clip held inside of riflejammed by bolt.
Failure to eject cartr idge case ---
Failure to eject cartridge clip ---
Failure of bolt to open after firing
P r e s m r e .o n t r i gg e r does notrelease hammer.
One or more live cartr idgesejected with clip.
Opera ting rod assembly disen-gages fr om bolt while firing.
plugged gm port ____----_-____
bm gae cylin&r__-----------
Barrel undersize at gae port areaCae cylinder lock screw with valve
fails to close.Light indent on primer ---------Inadequate firing pin protrueionHammer spring housing damagedDeformed trigger, pin. or ham-
mer .Cperat ing rod aeeembly releases
too soon when clip is inserted.Wor n operating rod lug or kinked
helical @ring (operating rodassembly).
4-2 Special Repair Methods
a P ar ts or assemblies that connot berepa ired or reclaimed will be replaced.Non-repair able assemblies may be disas-
Probable cause Cor rec t i ve action
Excessive radii on operating r odcatch or operating rod aseem-bly.
Bullet guide high at accelerator
bearing point.Bolt does not move sufficientlyrearward.
Binding latch __ ________________Arm or operating rod catch bent
or deformed.Low power, causing short recoilWeak, missing, or frozen helical
spring (ejector).Ejector binds ___________ __-___-
Replace operating rod catch oroperating rod assembly.
Replace.
See short recoil.
Replace latch.Replace operating rod assembly.
Correct short recoil maMmctione.Replace helical spring (ejector).
Short recoil ___________________
Clip ejector worn, weak , orbroken.
Oper ating rod catch deformed orbroken.
Clean bolt ejector opening or re-move bure from ejector.
Clean gas port. Replace operatingrod assembly or helical epring .
Replace.
Replace catch.
Clean.Replace gas cylinder.Turn in weapon for r eplacement.Replace.
Replace helical epring (hammer).Replace.Replace.Replace defective tr igger, pin or
hammer.Replace operating rod catch and
bullet guide.Replace operating rod aseembly
or helical spring.
tuted. Such reconditioned u s e d parts ehouldbe examined carefully to deter mine theirsuitability.
sembled and the serviceable par tsretur ned to stock. 4-3. Cleaning
b. I f a required new par t is not available,a reconditioned used part may be sub&i-
Refer to TM 9-247, TM g-208-1 andTMg-208-2.
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CHAPTER 5
MAINTENANCE OF RIFLES
Section I. MAINTENANCE
N o t e . White arrows shown on illustrations indi-cate removal, black arrows indicate installation.
5-1. Maintenance Procedures
Refer to table 5-l.
Table 6-l. Maintenance of Rifles
Major Item,Groups andAssemblies
Rifle, Cal. .3 0
MlRifle , cal . .30
MlC(Snipers)
Rifle, C a l . .30Ml D(Sniper e)
Trigger housinga s s e m b l y
S t o c k a s s e m b l y
F o l l o w e r g r o u p
B o l t a s s e m b l y
L a t c h g r o u pB e a r s i g h t
g r o u pG a s c y l i n d e r
g r o u pG u n h a n d g u a r d
g r o u pB a r r e l a n d
r e c e i v e rg r o u p s
Te l e s c o p em o u n ta s s e m b l y f o rr i f le MlC@ip er %)
M o u n t i n gb r a c k e ta s s e m b l y f o rr i f le MlD( 8 n i p e r s )
C h e e k p a d f orr i f l e s MlC,MlD(Snipe r%)
Grenadel a u n c h e rM7A3
12
Removal/Installation
Disassembly/Assembly
Fig. l-2.
Fig. l-4.
Fig. 1-6.
Figs. 5-l and5-2.
Fig. 5-6.
Fig. 5-11 and5-12.
Fig. 5-15
Fig. 5-18.Fig. 5-19.
Figs . 5-20 an d5-21.
Figs . 5-24 and5-25.
Fig. 5-28.
Fig. 5-37.
Fig. 5-38.
Fig. 5-39.
Fig. 5-40.
Inspect
Figs. 5-5,5-35, 5-36.
Figs. 5-5,5-35, 5-36.
Figs. 5-5,5-35, 5-36.
Fig. 5-3.
Fig. 5-7.
Figs . 5-13 an d5-14.
Figs . 5-16 and5-17.
Fig. 5-16.
Figs . 5-22 and5-23.
Fig. 5-26.
Figs. 5-29,5-31, 5-32,5-33, 5-34,a n d T B 9 -4933-202-30.
Replace
Fig. l -4 excepti tems 1, 2 , 4a n d 7.
Fig. l -6 excepti t e m 7 .
Fig. 5-48 excepi t e m 11 .
Fig. 5-49 excepi t ems 1 , 1D(1, th ru 5 )a n d l E (4 ).
Fig. 5-50 excepi t ems 7 , 9 ,
a n d 1 0 .Fig. 5-51.
Fig. 5-52.Fig. 5-53.
Fig. 5-54.
Fig. 5-49.
Fig. 5-55 excepi t ems 2 , 2At h r u 2 E , B a n i4.
Fig. 5-56.
Fig. 5-57.
ReMning eprine(fig. 5-40).
Repair
Fig. 5-30.
Fig. 5-30.
Fig. 5-30.
Fig. 5-4.
Figs. 5-9, 5-10,5 -42 an d TBOBD 507.
Fig. 5-27.
Note . Refe r tor M 9-1005-234-14P:o r r e p a i r p a r t s o f
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Bayonet-knifeM5Al
R.MOVSl/
IMwllatlon
Pig& S-41.
Fig. b-8.
T&e 6-l . Main tena nce of Ri f les -Cont in ued
Fig. 5-43.
Fig. S-44.
Fig. 5-45.
Fig. B-1.
Inspect
Fig. 5-46,
Fig. 5-47.
Replace
Fig. S-43 exce$ M7A3 launcher andi tem s 4, 7. Ml5 sight.
Fig. S-44 exc eplBlade
IAseembly .(7266555).
Note. Refer toTM 9-1005-237-15Pfor repair parts ofM5, M5AI bayonet-knives.
Fig. 5-45 excep(BladeA80embly.
Fig. E-l except
item 1C.
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NOTE: UNCO CK HAM MERWO RE DISASSEMBLING PIN.
\
UNSEAT TRIGGER PIN.
TRIGGER PIN
~SASSEMBLE/ASSEMBLE TRIGGER
_.. ._._i _$I$AS~~MBLE STRAIGHT HEADED HAMh 4ER PIN.
DISASSEMBLE/ASSEMBLE TRIGGER PIN.
PLUNG ER
II
SPRING
DISASSEMBLE/ ASSEMBLE HAMMER SPRING HOUSING ,HAMMER HELICAL COMPRESSION SPRING ANDHAMMER SPRING PLUNG ER.
ASSEMBLE STRAIGHT HEADED HAM MER PIN.
WE 10525
Figure 6-1. Disassem bly/ assembly of trigger housing assembly. (1 of e)
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DISASSEMBLE,:A SSEMBLE HA MMER.
_ ROTATE TRIGG ER GUARD
DISASSEMBLE, ASSEMBLE TRIGG ER GUARD.
SEATNG EJECTOR ON EJECTOR STUD.
DISASSEMBLE, ASSEMBLE SAFETY.
UNSEATNG EJECTOR
,,_*.:TRIGGERHO USING
DISASSEMBLE/ASSEMBLE EJECTOR.WE 10526
Figure 5-Z. Disassemb ly/ assembl y of trigger housing assembly. (2 of 2)
1 5
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CHECti FCR
CRACKS
CHECK FORCHIPPED SURFACE
CHECK FORBENT SHANK
HAMMER -5546008
CHECKFOR
WORN
w
4NOSE
PLCNC-ER -6C OESSC
CHECKCRACI
FORc s
CHECK FORDwa GED TANG
--EJECTOR -
IK
5
6008883
CHECK FORBROKEN EDGE INFRONT OF HOLE
j536Cl8WE 12584
Figure 5-3. Inspection points of comp onent parts of trigger housing assembly.
s TRIGG ER HOUSING
OFFSET POINT
WE 10511
Figure 5-4. Filing offset point of ejector.
1 6
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BUTT SWIVEL
,/ /
YMACHINE SCREW
/ *
DISASSEMBLE/ ASSE.MBLE MACHINE SCREW ANDBUTT SWIVEL.
SMALt BUTTPLATE SCREW
BUTT PLATE
MACHINE SCKEW
:. SMA LL BUTT PLATE SCREW
/ /
,,-2 ;,
DISASSEMBLb ASSEMBLE SMALL BUTT PLATE SCREW.
tSTOCK FERRULE
MACHINE SCREW
DISASSEMBLE/ ASSEMBLE BUTT PLATE.
1
STOCK .,_c
/
i ./
\ l.+
DISASSEMBLE STOCK FERRULE.
DISASSEMBLE/ASSEMBLE STOCK FERRULE MACHINESCREW AND STOCK FERRULE SWIVEL.
ASSEMBLE STOCK FERRULE.
WE 10434
Figure 5-6. Disassembly/assembly cf stock assembly.
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BUTTp
Figure 6-7.Inspection po+ts of component parts ofstock assembbo
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A - POSTONlNG WINTER TRlGG ER ASSEMBLY ONSTOCK A SSEMBLY.
REGULAR TRIGGER
6 - MARKING LOC ATION FOR DRILLING HOLES.
WINTER TRIGGERASSEMBLY
C - DRILLING HOLES IN STOCK ASSEMBLY. D - WINTER TRIGGER ASSEMBLY INSTALLED.
WE 10433
Figure 6-8. Procedures for installing winter trigger kit on stock assembly.
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NOTE:ALWAYS FILE FROMHEEL TO TOE ANDSTROKE FORWARDONLY.
BUTT
STO:: BUTT SWIVEL
Figure 6-9. Fitting butt plate on stock a ssembly.
CA UTON: USk EXTREME CARE TC MA INTAINIO0 ANGLE TO HORIZONTAL
WE 10424
Figure J-10. Correcting sw elling in stock assembly.
2 1
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DISASSEMBLE,ASSEMBLE FOLLOWER ROD AND O.ffRATNG ROD SPRING.
DISASSEMBLE/ASSEMBLE SHO!ILDER HEADED PIN. DISASSEMBLE/ASSEMBLE FOLLOWER ARM.
DISASSEMBLE/ASSEMBLE OPERATING ROD CATCH.:- _.
DISASSEMBLE/ ASSEMBLE BULLET GUIDE.
WE 10524
Figure S -11. Disassem bly/ assem bly of follower group. (1 of t?)
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REMCVE/ INSTALL FOLLOWER ASSEMBLY,
FOLLOWER ASSEMBLY ISNECESSARY ONLY IFREPAIR OR REPLAC EMENTOF PARTS IS REQUIRED.
DISASSEMBLE FOLLOWERSLIDE FROM FOLLOWER. .
ASSEMBLE FOLLOWERSLIDE O N FOLLOWER.
DISASSEMBLE/ ASSEMBLE OPERATNG ROD ASSEMBLY.
REMO VE/INSTALL BOLT ASSEMBLY.
WE 10446
Figure 5-12. Disassem bly/ assembl y of follower group. (2 of 2)
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LATCH -5546011
c I
GUILE -7265215
WE 12582
Figure 6-13. Inspection points of component parts of follower group.
WE 10411
Figure 5-14. Caging diameter of gas piston.
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- NO TE: PRES?UP ON PLUNG ERTO RELEASE EXTRACTOR
DISASSEMBLING EXTRAC TOR WITH ASSEMBLING ASSEMBLING EXTRAC TOR WITH ASSEMBLINGAND DISASSEMBLING FIXTURE. AND DISASSEMBLING FIXTURE.
DISASSEMBLE/ASSEMBLE EXTRAC TOR
AND CARTRIDGE EJECTOR.
CARTRIDGE
DISASSEMBLE/ASSEMBLE EXTRAC TOR
SPRING PLUNGER.
DISASSEMBLE/ASSEMBLE FIRING PIN,
Figure 6-16. Disassembly/assemb2y of bolt assembly.
WE ID441
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BOLT -6528287
EJECTOR -60086 16
CHECK FIRING PIN
HOLE FOR OVERSIZE PIN -
EXTRAC TOR - 6008879
CHECK FORCHIPPED EDG ES
CHECK
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LATCH PIN
UNSEAT STRAIGHT HEADED LATCH PIN. REMO VE LATCH PIN, LATCH AND HELICA LCOMPRESSION SPRING.
INSTALL LATCH PIN, LATCH AND SPRING .
Figure 6-18. Disassembly/assembly of latch group.
WE 10445
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LOOSEN/ TGHTEN NUT
DISASSEMBLE/ ASSEMBLE ELEVATYNG PINIO N.
-.#..,/
COVER
-.- i
ZPARATE REAR SIGHT CO VER FROM BASE.
CJISASSEMBLE~ASSEMBLE WINDAG E KNOB.
DISASSEMBLE/ ASSEMBLE APERTURE
BASE
DISASSEMBLE,ASSEMBLE REAR SIGHT CO VER ANDBASE,
WE 10519
Figure 5-19. Disassembly/assembly of rear sight group.
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OgEM6LE/ ASSEMBc E GAS CYLINDER LOCK.
b @EhBLE/ ASSEMs~ GAS CYLINDER LOCK.,
____ _ ^ _ _ . .AssEMBlY TO BARREL.
DISASSEMBLE/ASSEMBLE FLASH HIDER T37 FROMRIFLE MIC, MID.
IBARREL
LOO SEN GAS CYLINDER ASSEMBLY FROMBARREL.
REMOVE/ INSTALL GAS CYLINDER ASSEMBLY.
WE 10444
Figure 6-10. Disassembly/ assembly of gas cylind er group. (1 of 2)
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GAS CYLINDER
ASs5MBLY
DISASSEMBLE,, A5SEMSLE SOCKET HEAD SCREW
ASSEMBLE FRONT SIGHT
DISASSEMBLE/ ASSEMBLE STACKING SWIVEL SCREW
DISASSEMBLE FRONT SIGHT
STAKE STACKING SWIVEL SCREW.
0ISASSEMBLE;ASSEMBLE STACKING SWIV EL.
WE 10443
Figur e 6-.??l . Disassembly /assembly of gas cy l inder grou p . (8 of b)
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CHECK FORDAMAGED THREADS
DAMAG ED BCADE
CHECK FOR DISTORTED HOLE
L(>Ch -CYLINDER - 653949 ;2~~;8;1
CHECK FORDAMAGED AREAS
WE 12583
Figure S-923. Inspection point s of compon ent partsof gas cyEind er group.
GAS CYLINDE
GAGF PORTON
A - REAMING B - GAGING WE 10510
Figute 6-93. Use of ga s c@zd er dia met er p lug, gage 73_?.99+18.
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. J
LOOSEN 4ND
u DlSASSEMBlE BAND
32.
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ASSEMBLE REAR HAND GUARD.
ASSEMBLE SPRING PIN.
ASSEMBLE BAND O N M ID RIFLE..---
NOT& ON THE MID RtFLE THE REAR HAND G UARD MUSTSPRING PIN AND # RONT HAND G UARD.
, FRONT HAND GUARD/ ,_, I _ .I. . _.
ASSEMBLE FRONT HAND G UARD.
LOWER BAND
BAiRE L4b
ASSEMBLE BAND ON Ml, MIC RIFLE.
ASSEMBLE REAR HAND G UARD O N M ID RIFLE.
BE ASSEMBLED FIRST. THEN A SSEMBLE THE BAND,
WE IO.520
Figure b-86. Assembly of gun hand guard group.
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ED CHECKS ANDWHICH ARE NOT
CLEARANCE
CUT
\ 1T CRITCAL POINTSARE ACCEPTABLEWE 10408
REAR HANDGUARD
Figure 6-86. Gun hand guard defects and clearancecut for rifles.
Figure 6-87. Repaired front and rear gun hand guards.
A - RIFLE, Ml BARREL AND RECEIVER ASSEMBLY-7\
IVl
-B - RIFLE, Ml D BARREL, MO UNT BASE AND RECENER ASSEMBLY.
C - RIFLE, MlC BARREL AND RECEIVER ASSEMBLY.
4
Figure 6-88. Barrel and receiver groups - exploded view.
WE 10440
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.I. BARREL REFLECTOR
.i
A - VIEWING BARREL FROM MUZZLE END
BARRELBORE
REFLECTOR\
:EIVER
B - VIEWING BARREL FROM CHAMBER ENDWE IO521
Figure 6-19 . Inspec t ion of bar r e l using bar re l re f lec tor.
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ROD
WE 10512~,.
Figwe 5-30. Removing ruptured cartridge case.
. .IN RING
C::ACE
BARRE L GASPORT
WE 10513
Figure 5-31. Gaging breech bore. Figure 5-32. Gaging diam eter of barrel a t gas port.
, _--------q LC?:/ INSIDE
36Figure 6-33. Checking contour of receiver rib.
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TANG OF GA
/ GAGE PROPERLY POSITO NED IN RECENER
GA GE PLUG BELOW GA GING SURFAC E
GAGING SURFACE
CURRENT DESIGk. ORIGINAL DESIGN.SERVIC EABLE
ICHECKING GAG E - RECEIVER SERVICEABLE
GE PLUG ABC& ING SURFACE
AGING SURFACE
PLUG PROTRUDES
._-... __CURRENT DESIGN ORIGINAL DESIGN.
UNSERVICE 4BLE
CHECKING GAG E - RECEIVER UNSERVIC EABLE NE 10442
Figur e 5-34 . Procedu res for gaging eceiver, using gage 7799709.
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AND w&L FOOT BE FROMTEl.ESCopE NLESS AMAktEO.
&CK%EN/ TK;HTLN MA CHINE SCREWS. REMO VE/ lNSTALL M&4 TELESCO PE AND MO UNTASSEMBLY.
OISASSEMBL&, ASSEMBLE CLAMPS FROM TELESCOPEMlu.
WE 10523
Figure 6-37. Disassembly/assembly telescope mount assembly for rifle MlC (Snipers).
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LOOSEN/ TGHTEN KNOB SCREW. DISASSEMBLE/ ASSEMBLE CAP SCREWS.
MO UNTNG ASSEMBLY BRACKET
DtSASSEMBlE/ ASSEMBLE M&f TELESCOPE FROM BRACKET ASSEMBLY.
WE 10437
Fgure 6-38. Disassembly /assembly of m oun t ing brack e t assembly fo r r i f l e MlD (Sn iper s ) .
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