Note Qrb
Requisition new rivet from TM 9-1005-249-23 amp P, TM 9-1005-319-23 amp P, or TM 05538C-23 amp P 2A Marine Corps only . 16. Install front swivel 4 with new rivet 19 on bottom of front sight. Flare rivet with punch and hammer. ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 REMOVAL OF M203 M203A1 GRENADE LAUNCHER FROM M16 SERIES RIFLE M4 SERIES CARBINE CONT
Note Oxa
If you have difficulty removing the hand guard assembly, use the buddy system. See step 4. ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 4. Stand the weapon on the buttstock 7 Grip the stock with one hand and the lower end of hand guard assembly 6 with the other hand. Have your buddy press down with both hands on the slip ring 5 . Pull hand guard assembly 6 free. ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM...
Reassembly Jed
1. Install spring pin 1 , helical compression spring 2 , safety detent 3 , flat end first, and grenade launcher safety 4 , and secure with spring pin 5 . Spring pin should be equal distance to both sides. 2. Seat compression helical spring 5 in hole in receiver. Install cartridge extractor 6 and secure with spring pin 7 . Check that spring pin 7 is equally positioned on both sides. ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 3....
Mm Grenade Launcher Mma We Maintenance Instructions Cont
REMOVAL OF M203 M203A1 GRENADE LAUNCHER FROM M16 SERIES RIFLE M4 SERIES CARBINE CONT . 2. Inspect mounting bracket 2 for bends or damage. If damaged, evacuate to direct support maintenance. Inspect two machine screws 3 . If damaged, replace machine screws. MARINE CORPS ONLY Refer to page 3-4. ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 INSTALLATION OF M203 GRENADE LAUNCHER TO M16 SERIES RIFLE INSTALLATION OF M203 GRENADE LAUNCHER...
Note Qjn
Side swivel mount has to be on the right side of the M4 M4A1 when mounting the M203A1 Grenade Launcher. 7. Ensure side swivel mount has the sling swivel located on the right side of the M4 M4A1. If not, disassemble side swivel mount see para 2-16, step 5A thru 5C . 8. Reassemble side swivel mount see para 2-16, steps 4B thru 4D . 9. Install M203A1 to the M4 M4A1. a. Remove handguard. ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 c....
Initial Setup Ext
Army Small Arms Repairman Tool Kit item 5, app B MC Small Arms Repairman Tool Kit item 5, app B Equipment Condition Sightarm assembly removed from quadrant sight assembly. Refer to page 2-38. ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 2-16. SIGHTARM ASSEMBLY-MAINTENANCE INSTRUCTIONS CONT . Disassemble only to replace unserviceable components. Disassemble only to replace unserviceable components. File the peened end from rivets 1...
Preembarkation Inspection Of Materiel In Units Alerted For Overseas Movement
STANDARDS FOR PREEMBARKATION INSPECTION OF 40MM GRENADE LAUNCHER M203 IN UNITS ALERTED FOR OVERSEAS MOVEMENT CONT Firing pin protrusion Must pass firing pin protrusion test as cited on page 3-35. Grenade launcher must have latest configuration firing pin PN 12002970 as cited on page 3-21. M203 grenade launcher Perform function checks in accordance with operators manual. ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010
Receiver Assemblymaintenance Instructions Cont Tsy
7. Visually inspect the face of the breech insert 1 for damage. Inspect the breech insert it should not protrude above the breech face and should not be more than 0.007 inches 0.018 cm below the breech face. If the weapon fails any part of the above inspection, skip to step 9 for repair. If the weapon passes all of the above inspections, skip to page 3-27 for reassembly. There is no reverse torque requirement on receiver assemblies with serial numbers 39700 and above. Before inspecting an M203...
Principle Of The Fiveposition Shim Plate 1
The basic overall length between the barrel nut roll pin at the rear of the receiver, and the starting position shim plate cutout surface at the front, is approximately 11 inches. As noted in step 5, some sliding motion may be detectable between the rifle barrel stop and the front of the five-position shim plate at the starting, or minimum, overall length cutout position. Subsequent re-insertion of the five-position shim plate to its 2, 3, 4, or maximum fifth length position refer to step 2,...
Unit And Direct Support Maintenance Repair Parts And Special Tools List
C-1 ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 Section II Repair Parts Group 00 40MM Grenade Launcher M203 W E 11838703, M203A1 W E Group 01 40MM Grenade Launcher M203 8448300, M203A1 12982965 and M203A2 0101 Mounting Bracket 02 Quick Release Bracket, 12973116 0201 Left Bracket Assembly, 03 Leaf Sight and Rail Grabber Assembly, 12598117 04 Leaf Sight Assembly M203 and M203A1 8448330, M203A2 12598115 C-3-1 C-3 05 Barrel Assembly,...
Note Szu
The weapon must be cocked in order for safety lever to operate. 8. Cock grenade launcher. Turn grenade launcher upside down putting safety 12 in safe position. Oil safety detent 13 using one or two drops of CLP item 5, app D . Operate the safety several times to work in the oil. ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 11. Perform function check on receiver assembly in accordance with TM 9-1010-221-10. 9. Lubricate the barrel...
Receiver Assemblymaintenance Instructions Cont Reassembly Cont
NEW TRIGGER PIN OLD TRIGGER PIN NEW TRIGGER PIN OLD TRIGGER PIN The new trigger pin for the receiver assembly is illustrated in this procedure. The old trigger pin is also illustrated here. When old trigger pin is unserviceable, replace with new old style trigger pin. 5. Install compression helical spring 15 into the back of the firing pin receiver. To avoid injury to your eyes, use care when removing and installing spring-loaded parts. 6. Install new trigger pin as follows A fabricated slave...
Receiver Assemblymaintenance Instructions Cont Dqh
11. Install breech insert 1 in receiver assemblies with damaged threads as follows Dry cleaning solvent is FLAMMABLE and TOXIC and must be kept away from open flames and used in a well-ventilated area. Use of rubber gloves is necessary to protect the skin when washing grenade Appropriate eye protection is recommended when cleaning your weapon and or its parts. a. Remove the breech insert from the receiver assembly. Clean thoroughly using dry cleaning solvent item 9, app D . The threads must be...
Launcher Grenade Mm Ma We Eicqj
o o o o o o _ y fjl iC m- gt UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES DIRECT SUPPORT MAINTENANCE PROCEDURES DISTRIBUTION STATEMENT C Distribution authorized to U.S. Government agencies and their contractors. This publication is required for administration and operational purposes, as determined on July 1, 1991. ARMY ONLY Other requests for this document shall be referred to AMSTA-LC-CIP-WT, TACOM-RI, 1 Rock Island Arsenal, Rock Island, IL 61299-7630. AIR FORCE ONLY Other requests for...
Maintenance Of Quick Release Bracket Cont 1
f. MOUNTING TO THE M16A4 RIFLE CONT f. MOUNTING TO THE M16A4 RIFLE CONT 4. If present, remove the lower rail of the M5 adapter rail system from the M16A4 rifle. Confirm that the barrel stop is installed inside the handguard cap. Move the rear of the receiver into position around the rifle barrel. Confirm that the latch arm 3 of the bracket is fully open. Rotate the muzzle end of the M203A2 towards the rifle barrel while sliding the M203A2 firmly to the rear. Confirm that the roll pin in the...
Reporting Errors And Recommending Improvements
You can help improve this publication. If you find any mistakes or if you know of a way to improve the procedures, please let us know. Army users submit your DA Form 2028 Recommended Changes to Equipment Technical Publications , through the internet, on the Army Electronic Product Support AEPS website. The internet address is http aeps.ria.army.mil. If you need a password, scroll down and click on ACCESS REQUEST FORM. The DA Form 2028 is located in the ONLINE FORMS PROCESSING section of the...
Equipment Data
3 pounds ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 1-13. STORAGE OF GRENADE LAUNCHER M203. a. M12 Rack. Built for the M16 series rifle and the M203 grenade launcher. Store the launcher in the M12 rack with the sight in the 300-400 meter position so that when you close the locking bar of the rack, the bar misses the sight. The sight has to be above the 300-meter position to avoid damage from the bar of the rack. For the correct...
Corrective Action Gmf
Step 1. Check for worn coil compress helical spring. Replace worn coil compression helical spring p 3-22 . Step 2. Check for broken grenade launcher safety. Replace broken grenade launcher safety p 3-22 . Step 3. Check for broken or missing spring pin. Replace broken or missing spring pin p 3-22 . Step 1. Check for worn barrel extension or barrel assembly. Replace worn barrel extension p 3-22 . Check for worn, broken, or missing cartridge ejector, spring, or retainer. Replace worn, broken, or...
Illustrated List Of Manufactured Items
a. This appendix includes complete instructions for making items authorized to be manufactured or fabricated at unit and or direct support levels. b. All bulk materials needed for manufacture of an item are listed by part number or specification number in a tabular list on the illustration. Figure E-1. Fabrication of bore constriction check tool Figure E-1. Fabrication of bore constriction check tool 1. MATERIAL MILD STEEL 1018 BAR STOCK, 1-3 4 IN. DIA, NSN 9510-00-813-5335, UNIT OF ISSUE FOOT,...
Section I INTRODUCTION
B-1. THE ARMY MAINTENANCE SYSTEM MAC. a. This introduction section I provides a general explanation of all maintenance and repair functions authorized at various maintenance levels under the standard Army Maintenance System concept. b. The Maintenance Allocation Chart MAC in section II designates overall authority and responsibility for the performance of maintenance functions on the identified end item or component. The application of the maintenance functions to the end item or component will...
Initial Setup Gkg
ARMY Small Arms Repairman Tool Kit item 5, app B MC Small Arms Repairman Tool Kit item 5, app B Cleaner, lubricant, and preservative item 5, app D Dry cleaning solvent item 9, app D a. Leaf sight assembly removed from hand guard page 3-7 . b. Leaf sight assembly removed from rail grabber assembly page 3-7 . ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010
Section I LUBRICATION INSTRUCTIONS
2-1. LUBRICATION INSTRUCTIONS. Wherever the term Cleaner, Lubricant, and Preservative CLP or the words Lubricant, Lube, LSA, or LAW are cited in this TM, it is to be interpreted to mean CLP, LSA, or LAW can be utilized as applicable. The following constraints must be adhered to a. Under all but the coldest arctic conditions, LSA item 13, app D or CLP item 5, app D are the lubricants to use on your weapon. Either may be used at -10 F and above. However, do not use both on the same weapon at the...
Corrective Action 1
Step 4. Check for broken or improperly assembled parts of firing mechanism 3 . Evacuate to direct support maintenance if firing mechanism is broken or improperly assembled. Step 5. Check for defective cartridge locator spring 4 a. Using cleaning rod section, push cartridge locator toward muzzle, and then release. b. Cartridge locator must move forward and back under spring c. If cartridge locator does not function, evacuate to direct support maintenance. ARMY TM 9-1 01 0-221 -23 amp P AIR FORCE...
Note Rkj
When used on the M16A4 rifle, the leaf sight and rail grabber assembly will be attached to slot T38 on the M5 Adapter Rail System. When used on the M4 or M4A1 carbine, the leaf sight and rail grabber assembly will be attached to slot T24 on the M4 Adapter Rail System. 25. Turn the torque knob of the assembly counterclockwise until it stops turning. Place the assembly on the upper rail and insure the recoil lug is seated in the correct slot. The torque knob should be to the left of the carbine...
M203 Barrel Extension Staking Tool
1. FABRICATE SLAVE PIN FROM MATERIAL BLOCK, WIRE, STEEL ALLOY, GRADE 4140, ASTM-A547 OR EQUIVALENT. 2. PURPOSE OF TOOL TO HOLD TRIGGER PARTS ASSEMBLED DURING INSTALLATION. 3. ALL DIMENSIONS SHOWN ARE IN INCHES WITH THE METRIC CONVERSION TO CEN Figure E-3. Barrel extension staking support tool 1. FABRICATE FROM MATERIAL BLOCK, ALUMINUM OR MILD STEEL BAR STOCK, AS AVAILABLE. 2. PURPOSE OF TOOL FOR SUPPORT DURING STAKING OF BARREL EXTENSION. 3. ALL DIMENSIONS SHOWN ARE IN INCHES WITH THE METRIC...
C
Figure C-2C. Leaf Sight and Rail Grabber Assembly 12598117 ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 Figure C-3. Leaf Sight Assembly M203 and M203A1 8448330, M203A2 12598115 Description and Usable On Code UOC SECTION II ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010
Section III PRINCIPLES OF OPERATION
1-14. TECHNICAL PRINCIPLES OF OPERATION. The M203 grenade launcher is lightweight and compact and must be attached to M16 series rifles. The M203A1 grenade launcher is light-weight and compact and must be attached to M4 series carbines. a. Open the launcher, insert a round, and close the launcher. c. Place the launcher to your shoulder. Keep muzzle pointed at target and move the safety from the SAFE to the FIRE position. d. Align the front and rear of the quadrant sight assembly with the target...
MAINTENANCE OF QUICK RELEASE BRACKET CONT a INSTALLATION CONT
5. As illustrated below, hold the retaining spring 1 away from the plunger 2 . Fully depress the plunger and rotate the latch lever 3 fully upward. Lift the latch arm 4 away from the hook 5 . It may be necessary to depress the plunger to allow the latch lever to lock. Rotate the latch arm up and out of the way to its fully open position. Depress the plunger and remove the five-position shim plate 6 . Remove the right half base 7 by sliding it off the left bracket assembly 8 dovetail. 6....
a When National Stock Number or Part Number is Not Known
1 First. Using the table of contents, determine the assembly group or subassembly group to which the item belongs. This is necessary since figures are prepared for assembly groups and subassembly groups, and listings are divided into the same groups. 2 Second. Find the figure covering the assembly group or subassembly group to which the item belongs. ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 C-6. HOW TO LOCATE REPAIR PARTS CONT...
Reassembly Co Nt
12. Install compression helical spring 27 and barrel latch 28 . Secure with headless straight pin 29 by installing headless straight pin flush to 0.030 in. 0.076 cm slightly below the tip of the receiver. The headless straight pin must not be flush with or extend below the bottom surface. 13. Stake headless straight pin in place as follows 13. Stake headless straight pin in place as follows a. Stake pin in place at top and bottom, 180 degrees opposed do not allow punch to extend or slide into...
Note Slb
The M203 grenade launcher must be reinstalled on the same rifle from which it was removed. The M203A1 grenade launcher may be switched to a different carbine by direct support. When mounting an M203A1 grenade launcher, ensure side sling swivel is mounted on the right side of the carbine. If not, remove side sling swivel TM 9-1005-319-23 amp P, para 2-16, steps 5A thru 5C and reinstall, steps 4B thru 4D. 1. Remove sling 1 from front swivel 2 .
Maintenance Of Small Arms Gages
Small arms gages are precision tools used to quickly and economically inspect dimensions and interface points on small arms weaponry. They are made of tool steel and machined to extremely tight tolerances. With few exceptions, each small arms weapon system has gages used at Direct Support and Depot maintenance levels. Gages are susceptible to corrosion. To decrease the frequency and severity of corrosion, small arms gages should be periodically degreased with MIL-PRF-680 Type II, allowed to...
Figure C Barrel Assembly
Description and Usable On Code UOC 3040-00-438-7321 1010-00-438-7274 5360-00-177-4220 BARREL, EXTENSION U0C BC7,401,BJ9 LOCATOR, CARTRIDGE U0C BC7,401,BJ9 SPRING, HELICAL, COMPRESSION UOC BC7,401,BJ9 UOC BC7,401,BJ9 GRIP, GRENADE LAUNCHER UOC BC7,401,BJ9 SECTION II ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 Figure C-5. Receiver Assembly M203 8448380-1, M203A1 8448380-2 and M203A2 8448380-3 ARMY TM 9-1010-221-23 amp P AIR FORCE TO...
Receiver Assemblymaintenance Instructions Cont 1
Solid Film Lubricant SFL is the authorized touchup for the M203 M203A1 Grenade Launcher and may be used on up to one third of the exterior finish of the weapon. FOR CONUS USE ONLY Solid Film Lubricant item 11, app D may be used as a touchup without limitation on the receiver assembly. This is to say that units which DO NOT fall under the category of Divisional Combat Units or rapid deployment type units may have up to 100 percent of the exterior surface of the receiver assembly protected with...
Receiver Assembly Maintenance Instructions Cont
To avoid injury to your eyes, use care when removing and installing spring-loaded parts. The new trigger pin, part number 12002921, for the receiver assembly is illustrated above. When the new trigger pin is removed, the trigger separates into three parts the trigger, sear, and compression helical spring The old trigger pin is also illustrated above and is a repair part for the old trigger assembly. When the old trigger pin is removed, the trigger assembly remains intact by the sleeve bushing....
Warning 1
Clear the weapon before starting an inspection. Step 1. Check for dirt in firing pin recess 1 . Clean firing pin recess with CLP item 5, app D or RBC item 7, app D see TM 9-1010-221-10 . ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 2-9. TROUBLESHOOTING PROCEDURES CONT . Step 2. Check for dirt in cartridge locator slot 2 . Clean cartridge locator slot with CLP item 5, app D or RBC item 7, app D see TM 9-1010-221-10 . Barrel must be...
Troubleshooting Procedures Page
Failure to Fire Failure to Cock Failure to Extract Failure of Failure to Close or Latch Failure to Eject ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 3-5. TROUBLESHOOTING PROCEDURES CONT .
Principle Of The Fiveposition Shim Plate
The basic overall length between the barrel nut roll pin at the rear of the receiver, and the starting position shim plate cutout surface at the front, is approximately 11 inches. As noted in step 5, some sliding motion may be detectable between the carbine barrel shoulder and the front of the five-position shim plate at the starting, or minimum, overall length cutout position. Subsequent re-insertion of the five-position shim plate to its 2, 3, 4, or maximum fifth length position refer to step...
Appendix A References
A-1. SCOPE. This appendix lists all technical manuals and field manuals referenced in this manual. A-2. TECHNICAL MANUALS TECHNICAL ORDERS TM 9-1005-249-10 Operator's Manual M16A1 Rifle TM 9-1005-249-23 amp P Unit and Direct Support Maintenance Manual including Repair Parts and Special Tools List Rifle, 5.56MM, M16 1005-00-8566885 Rifle, 5.56MM, M16A1 1005-00-073-9421 TM 9-1005-319-10 Operator's Manual w Components List for Rifle, 5.56MM, M16A2 TM 9-1005-319-23 amp P Unit and Direct Support...
Mm Grenade Launcher Mma We
Shop Set, Small Arms Field Maintenance, Basic Less Power 5180-01-462-4254 MC 5180-00-357-7770 ARMY SC 5180-95-B71 MC SL 3-00607A ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010
Official Nomenclature Names And Designations Cont
NOMENCLATURE CROSS-REFERENCE LISTS CONT Common Name Official Nomenclature Quadrant sight grenade launcher sight 1-6. REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS EIR . If your grenade launcher needs improvement, let us know. Send us an EIR. You, the user, are the only one who can tell us what you don't like about your equipment. Let us know why you don't like the design. I Army users submit Standard Form SF 368 Quality Deficiency Report QDR to AMSTA-AR-QAW-C, TACOM-ARDEC, 1 Rock Island...
Leaf Sight Assembly Maintenance Instructions Cont
Dry cleaning solvent is FLAMMABLE and TOXIC and must be kept away from open flames and used in a well-ventilated area. Use of rubber gloves is necessary to protect the skin when washing grenade launcher parts. Appropriate eye protection is recommended when cleaning your weapon and or its parts. 1. Clean front folding sight leaf with dry cleaning solvent item 9, app D and wiping rag item 17, app D . 2. Inspect all parts for serviceability. 3. Replace all authorized unserviceable parts. 4. Line...
Initial Setup Hlz
Barrel extension staking support tool fig. E-3, app E Bore constriction check tool fig. E-1, app E ARMY Small Arms Repairman Tool Kit item 3, app B MC Small Arms Repairman Tool Kit item 3, app B Materials Parts Adhesive item 1, app D Bore brush 7790631 Cleaner, lubricant, and preservative CLP item 5, app D Dry cleaning solvent item 9, app D Barrel assembly removed from grenade launcher page 2-17 . ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW...
Note 1
All active Army M203 M203A1 M203A2 grenade launchers must be inspected and gaged at least I annually for safety. All Army Reserve and Army National Guard M203 M203A1 M203A2 grenade I launchers must be inspected and gaged at least once every two years, after the initial inspection gaging procedures have been accomplished. The initial gaging procedures for Active Army, Army Reserve, and Army National Guard are required one year from receipt of the weapons. This two-year interval may be maintained...
Installation Of Ma Cont
11. Stake once on each side of barrel stop pin hole 5 . 11.1. Position mounting bracket over carbine barrel in step down area between muzzle and front sight with the flanges toward the muzzle. 12. Rotate mounting bracket upward side ways and insert other bushing half between M203A1 receiver and M4 M4A1 carbine barrel. 13. Insert bracket clamp assembly 6 into mounting bracket 7 behind the mounting bracket flange, with the rounded portion of bracket clamp assembly toward carbine barrel, and slide...
Mm Grenade Launcher Mmawe Maintenance Instructions Cont
INSTALLATION OF M203 GRENADE LAUNCHER TO M16 SERIES RIFLE CONT 4. Remove front swivel 6 from bottom of front sight by driving out rivet 7 . 7. Place swivel locking bar 9 in swivel mount 8 . 9. Remove barrel assembly 11 from receiver assembly 12 if assembled. See page 2-17. ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 10. Install bushing half 13 in mounting bracket 14 . 11. Position mounting bracket 14 over rifle barrel with the tip...
Figure C Latch Assembly
Description and Usable On Code UOC U0C BC7,401 PIN, STRAIGHT, HEADLESS U0C BC7,401 SECTION II ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 Figure C-9. Sightarm Assembly 12002885 Description and Usable On Code UOC SECTION III ARMY TM 9-1010-221-23 amp P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23 amp P 2 NAVY SW 370-AE-MMI-010 Description and Usable On Code UOC GAGE, FIRING PIN PROTRUSION 2 per DS GS SECTION IV ARMY TM...
Equipment Characteristics Capabilities And Features
a. The grenade launcher is a breech-loading, pump-action, single-shot, manually operated weapon. b. It can fire a variety of 40mm ammunition. c. The secondary sear sear by nomenclature in accordance with item 13, page C-5-1 prevents accidental firing if the trigger is held down during cocking and loading operations. When the trigger is forward, the firing pin is held to the rear by the sear portion of the trigger, not the sear.
Maintenance Of Quick Release Bracket Cont
10. Referring to step 5 on page 4-3, re-install the five-position adjustment shim plate while noting the dot pattern on the front face of the shim plate. The dot pattern should face the muzzle, and the side with 2 dots should be inserted down. This is illustrated in the figure below . Close and lock the bracket and latch lever. It may be necessary to depress the plunger to allow the latch to lock. This should keep the shim plate from falling free of the assembly. ARMY TM 9-1010-221-23 amp P AIR...