Mm Grenade Launcher Mma We Maintenance Instructions

Removal of M203 Grenade Launcher From M16 Series Rifle and M203A1 Grenade Launcher From M4 Series Carbine c. Installation of M203 Grenade Launcher to M16 Series Rifle and M203A1 Grenade Launcher to M4 Series Carbine (Army) Small Arms Repairman Tool Kit (item 5, app B) (MC) Small Arms Repairman Tool Kit (item 5, app B) Locking wire (MS20995C32) (9505-00-293-4208) Rivet (8448697) (from TM 9-1005-249-23& P, TM 9-1005-319-23& P, or TM 05538C-23& P 2A (Marine Corps only) (Used to return...

Mm Grenade Launcher Mma Wemaintenance Instructions Cont

REMOVAL OF M203A1 FROM M4 SERIES CARBINE REMOVAL OF M203A1 FROM M4 SERIES CARBINE M203A1 ONLY 11.4. Pull front of receiver assembly (15.3) away from carbine. Then lift it up and out of the carbine slip ring (15.4). ARMY TM 9-1010-221-23& P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23& P 2 NAVY SW 370-AE-MMI-010 ARMY TM9-1010-221-23& P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM 07700A-23& P 2 NAVY SW 370-AE-MMI-010

Mma Cont

Grenade launcher with or without M16 series rifle or M4 series carbine g. Thoroughly clean areas that are to be touched up using dry cleaning solvent (item 9, app D). Touch up shiny exterior surfaces with solid film lubricant (item 11, app D). Annual direct support safety and serviceability inspection and gaging h. Check to ensure annual direct support safety and serviceability inspection and gaging has been done, and that the next gaging and inspection is scheduled. If annual gaging has not...

Section Ii Repair Parts Tools Special Tools Test Measurement And Diagnostic Equipment Tmde And Support Equipment

For authorized common tools and equipment, refer to the Modified Table of Organization and Equipment (MTOE), CTA 50-970 or CTA 8-100, as applicable to your unit. 2-3. SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT. Special tools, TMDE, and support equipment are listed in appendixes B and C of this manual. 2-4. REPAIR PARTS. Repair parts are listed and illustrated in appendix C of this manual. ARMY TM 9-1010-221-23& P AIR FORCE TO 11W3-9-4-2 MARINE CORPS TM...

Section Ill Service Upon Receipt Service Upon Receipt Of Materiel Refer to the table below

SERVICE UPON RECEIPT-40MM GRENADE LAUNCHER M203 M203A1 The initial gaging procedures for Active Army, Army Reserve, and Army National Guard are required one year from receipt of the weapons. Remove grenade launcher and components from The grenade launcher, swivel mount, hand guard assembly, quadrant sight assembly, and mounting hardware are packaged in a protective wrapping and shipped as a unit, two to a carton. If the equipment has been damaged, report the Inspect the equipment for damage...

Gordon R Sullivan

General, United States Army Chief of Staff MILTON H. HAMILTON Administrative Assistant to the Secretary of the Army MERRILL A. McPEAK Generalr United States Air Force Official Chief of Staff RONALD W . YATES General, United States Air Force Commander, Air Force Materiel Command To be distributed in accordance with DA Form 12-40-E, Block 0545, requirements for TM 9-1010-221-23& P. U.S. GOVERNMENT PRINTING OFFICE 1993 746-045 70113 For use of this form, see AR 25-30 the proponent agency is...

Preembarkation Inspection Of Materiel In Units Alerted For Overseas Movement

This inspection is conducted on materiel in alerted units scheduled for overseas duty to be sure that such materiel will not become unserviceable in a relatively short time. It prescribes a higher percentage of remaining usable life in serviceable materiel to meet a specific need beyond minimum serviceability. Clear the weapon before starting inspection. Do not squeeze the trigger until the weapon has been cleared. Inspect the bore and chamber to be sure they are empty and free from...

Preventive Maintenance Checks And Services Cont

UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES FOR 40MM GRENADE LAUNCHER, a. Check for cracked, broken, or missing teeth (p 2-39). b. If damaged, repair or replace the quadrant assembly. Refer to page 2-39. c. In order to prevent the quadrant sight assembly from being damaged, refer to page 1-6. Annual DS safety and serviceability inspection and gaging Check to ensure annual DS safety and serviceability inspection and gaging has been done and that the next gaging and inspection is scheduled....

Reassembly

Intratec Diagram

Align holes in base of leaf sight assembly 1 with holes in hand guard assembly 2 . Apply sealing compound item 19, app D to two machine screws 3 . Install and fully tighten two machine screws 3 . 2. Install hand guard assembly 2 on M16 series rifle p 2-30 . 3. Align holes in base of leaf sight assembly 1.1 with holes in rail grabber assembly 4 . Apply sealing compound item 19, app D to two socket head screws 3.1 and assemble with two hex nuts 5 . ARMY TM 9-1010-221-23 amp P AIR FORCE TO...

Section Ii Expendable And Durable Items List

8040-00-043-1717 8040-00-680-1080 8040-00-266-7429 73842 PLIOBOND20 2 oz tube 3.75 oz tube 8 oz can BOTTLE, ASSEMBLY CYLINDRICAL 19204 8448444 BRUSH, CLEANING, TOOLS AND PARTS 81349 MIL-S-43871 CLEANER, LUBRICANT, AND PRESERVATIVE 81349 MIL-L-63460 1 2 oz 14.79 ml bottle 27412 CLP-5, CLP-7 1 pt 0.48 l can 1 gal. 3.78 l container CLEANER, TOBACCO PIPE 89855 DILLS PIPE CLEANER CLEANING COMPOUND, RIFLE BORE small arms bore cleaning solution RBC 81349 MIL-PRF-372 2 fl oz 59.15 ml bottle 8 oz 236.6...

Corrective Action

203 Leaf Sight

Check for dirty follower guide assembly or receiver cavity. a. Remove back plate and follower guide assembly p 2-32 . b. Clean and lubricate back plate and follower guide assembly p 2-33 . c. Clean and lubricate trigger housing p 2-34 . 6. FAILURE OF THE LEAF SIGHT ASSEMBLY TO REMAIN AT THE SELECTED RANGE. Step 1. Check for loose machine screw 1 on front folding sight leaf 2 . Tighten machine screw. Step 2. Check for loose machine screws 3 on sight leaf vase 4 . Tighten machine screws. ARMY TM...

Receiver Assemblymaintenance Instructions Cont

Military Grenade Launchers

Be sure the beveled side of the back plate is down and to the rear of the receiver assembly before placing back plate in slot of receiver assembly. Be sure follower guide assembly is installed as illustrated. 2. Install follower guide assembly 4 in receiver assembly 5 . While holding follower guide assembly 4 in place, slide back plate 6 in slot of receiver assembly 5 . 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. Align screw...

Note

Grenade Drawing

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

M203 Grenade Launcher

M203 Grenade Launcher Disassembly

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...

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...

Initial Setup

M203 Quadrant Sight

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 Cont

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

Principle Of The Fiveposition Shim Plate

M203a2 Quick Release Bracket

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,...

Receiver Assemblymaintenance Instructions Cont Reassembly Cont

M203 Receiver Assembly

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...

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

M203 Quick Release Bracket

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

Air Force Position For Four Ribbon Rack

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...

Illustrated List Of Manufactured Items

M203 Metal Handle

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

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...

Section I 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...

Takedown Pin Diagram M16

M203 Diagram

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

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...

5340-00-438-7337

M203 Grenade Launcher

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

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

M203a2 Quick Release Bracket

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

Marine M203 Grenade Launcher

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

Torsion Clock Collection

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...

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

19204 Assy 12002885

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 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

M203 Nomenclature

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...

Appendix A References

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...

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

M203 Mount

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...

Pmcs For M203a2 Grenade Launcher

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

M203 40mm Grenade Launcher

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

Schematic M203 Grenade Launcher

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

5220 348 8434 End Item

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

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.