ARMAL7TE m-18 (AR-180) OPERATION & MAINTENANCE MANUAL * General Data * Accessories * Special Tools * Operation--Usual & Unusual Conditions * Telescopic Sight * Repair * Cleaning * Preventative Maintenance * Trouble Shooting * Disassembly/Assembly * Replacement of Parts Armalite, Inc.
OPERATING AND MAINTENANCE RIFLE, 5.56 - MM, AR - 18 Armalite, 118 Costa Inc.
TABLE OF CONTENTS Page CHAPTER 1 IN’I’RODUCTION SECTION 1 - 1. 1 - 2. SECTION 1 - 3. 1 - 4. SECTION 1 -10. SECTION 1 - 12. 1 - 15. ___.______________________________________._.__.~__.._____.___.____ .________. ___.___ ____.__________ _-e-.-e -._._.-- 1 - 1 1 Genera] _____._________.___________________________._____.___.___.______ _._______.-._ _.__.___..--______ ___.. .. ....-.- 1 - 1 Scope ___________.__________________.___.~__..__ ____________.__.___..__..._.___ ._____________.-_ _-__ ___.___.._...
APPENDIX I BASIC ISSUE ITEMS LIST ...___.._.._ ____ _._____......_.____._______._ _____________._____.___...__________________~___ 4-1 LIST 2-l 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-10 3-l 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3 - 10 3 - 11 3 - 12 3 - 13 3 - 14 3 - 15 3 - 16 3-17 3 - 18 3 - 19 3 - 20 1 2 3 l-l l-2 3-l 3-2 3-3 3-4 Page Rifle, 5.56-MM, AR-18, right and left side views__..._____ ____ ___._______ _.......__..__..................iii Rifle, 5.56-MM, AR-18, stock folded, left and right side view ..._.
Rifle 5 56 m.m. hgure AR- I8 l-1 Rifle 5.56 m.m. AR-i 8 Stock Folded Figure l-2 ...
CHAPTER I Section I GENERAL. l-1. 1-2. SCOPE. This manual is published for the information and guidance of personnel responsible for operation and organizational maintenance of the Rifle, 5.56 MM, AR-l& Information provided includes : tabulated data, accessories and special tools, preparation for use, operating instructions, preventive maintenance and lubrication procedures, inspection, trouble-shooting, repair parts, procedures on disassembly, cleaning, repair, assembly and ammunition. Section 2 l-3.
Length Rifle with flash suppressor-compensator.. ____ ____._._ .. .. .. ... ..... _... .._....__.._ ... .._._..._._._.. . .......... 38 in. . . _. .._......_..._...__ .._ . . . . . Rifle with bayonet-knife........__.._._.._____.____...__..._ .... __..._.... ..__...........43.5 in. . ... . 18 in. Barrel ._.___.____ .___..___ _.__ .. . .... ........ ..__.............................._ ................... .... .. ._.___._______________._._..__. in. .._ _ ..__.__ 19.8 . . . . _ ..__...._ . . _ . . . .
Table 1-2. SPECIAL TOOLS , Identifying Number Item Rod, cleaning, Rrush, cleaning, small arms, small AR-18 arms Section Figure Number 2866 1-Y 2867 1-3 4 ACCESSORlES AKD SPECIAL TOOLS. l-13. ACCESSORIES. l-14. Accessories are tabulated in Table l-1 and listed in Apendix I, which is the authority for requisitioning replacements. l-15. Special Tools. 1-16. Special Tools are tabulated in Table 1-Z and listed in Appendix I, which is the authority for requisitioning replacements. 1-l”.
Bayonet-Knife AR-18 and BayonetScabbard, Bayonet-Knife AR-18 BRUSH Bipod Rifle Arms AR-18 5773-5 AND SWAB SECTION TO TALLED ON SMALL ROD S BEFORE INSERTION Case - 2864 I INCHES Small Bipod, Cleaning Rod - 2866 1 I Small l- 4 I Arms Cleaning j- Brush 2 - 286’7
CHAPTER II OPERATING INSTRUCTIONS I Section * UPON RECEIPT OF MATERIAL. 2-1. SERI’ICE “-2. GENERAL. individual to determine 2-3. Upon receipt of the rifle, it \vill be inspected by the responsible that it has not been damaged in-transit and is in proper condition for service. 2-4. All basic issue items, replacement parts, tools, and equipment checked as invoiced. 2-5. A record will be made of all missing parts, tools, and equipment and any other deficiencies in the shipment.
Section 3 2-14. OPERATION UNDER USUAL CONDITIONS. 2-15. GENERAL. ’ 2-16. PREPARATION FOR FIRING. Clear the rifle by performing the following operations : Remove magazine, inspect chamber and place selector lever on “safe” position. (Fig. 2-l.) 2-17. SERVICE BEFORE FIRING. Refer to T ’ ‘es 3-2 and 3-3. 2-18. CLEAN AND LUBRICATE THE BOLT CARRIER GROITP. The bolt carrier group may be removed, as shown in (Figure 3-10.
Remove Mogazlne Figure 2-4 Disengage Takedown ‘I_‘)‘) d II. Inspect Chamber Remove Bolt Handle FIRING. Z-23. SEI,ECTOR LE1’ER. The rifle may be fired semi-automatically or fully automatically by moving the selector lever to the appropriate position, described in Figures ‘2-l and 2-5. :‘-23. SE111 POSITION. With the selector lever in this position, the rifle will fire one round each time the trigger is pulled. Z-25. AUTO POSITION.
Figure 2-4 Remove Bolt Assembly, Guide Rods and Sprlrlgs ~rle 5.56 m.m., AR-I Jump Figure Figure 2-5 Selector Lever Operation with Stock 8, Stock Folded ,n Positton 2 -6A folded rounds fired in a very minimum period of time. A cook-off can result when the primer is exposed to extremely high temperature, but still will require approximately 30 seconds for the heatto ignite the primer. In the event a cook-off occurs, immediately remove the magazine and eject the chambered cartridge.
Section 4 2-33. OPERATION UNDER UNTJSUAL CO;“\;DITIONS. If it is desired to fire the rifle \vith the stock folded, the tiser should become fully familiar with the operation of the selector lever from the right side of the rifle. The forefinger of the right hand shoultl be 11s~~to allo\v the continued proper hold on the pistol’ grip (a left handed shooter \vould use the thumb of the left hand). The rifle may be attached to the “-34. user for jump purposes, with stock folded or fully extended.
Section 5 2-36. TELESCOPIC SIGHT. Fig. No. 2-10. The telescopic sight is one of extremely durable design with outstanding optical capabilities. It has a true 2.75X magnification. 2-37. The quick detachable mount allows immediate removal or installation. Regardless of the number of times removed, it will return to a positive zero due to the dove tail design of the base and mount. A tunnel over the sight allows use of the iron sight in case of such an immediate requirement.
ORGANIZATIONAL CHAPTER III MAINTENANCE INSTRUCTIONS Section 3- 1. 3-2. *, ‘, 3-t>. I REPAIR PARTS, TOOLS AND EQUIPMENT. GENERAL. This chapter lists repair parts, common t!)ols and equipment ment. 3-4. REPAIR PART PARTS (2nd Echelon) NO. 2666-A 2671-C 2673-B 2668-A 2715-C 2678-A . -9. ACCESSORIES 3’ Table 3-4. and special tools and equip- OUANTITY DESCRIPTION AND Extractor Firing Pin Take Down Pin, Bolt Spring, Extractor Spring, Firing Pin Spring, Operating Rod SPECIAL TOOLS.
3-10. CLEANING AND LUBRICATING THE BOLT CARRIER GROUP. a. Remove the bolt carrier group from the upper receiver. Field strip the bolt carrier group. Wash all external surfaces with a patch saturated in solvent cleaning compound. b. Using a small brush dipped in solvent cleaning compound, scrub all carbon deposits and dirt from the locking lugs of the bolt. CAUTION Brush the face of the bolt, paying particular attention to area under the face of extractor.
Table 3-l. Malfunction TROUBLE SHOOTING Probable Cause Remedy Bolt fails to lock to the rear after last round. 1. Faulty magazine. Replace magazine. Failure to feed. 1. Faulty magazine. 2. Binding bolt and bolt carrier in locked position. Replace magazine. Disassemble and clean (on a new weapon, one or two drops of oil on the guide rods may remedy this trouble). Check firing pin and spring and oil. Clean and lubricate bolt and carrier, higher echelon. Failure to fire. 1.
Upper Receiver Group - \\ Bolt Hnmmer Spring Car1 Lower R,fle, 5.56 m.m. AR-I hgure Remove, Install 8 Major Group Groups 3-l Ooerat~na Figure Receiver Rod Assemblv D,sengogeiRemove 3-2 Srlector Figure Selector R,ght PIIT 6-3 lever S,de Lever 3 5A \ - and are able Remove/Install Figure Hammer Pin D!sengoge/Remove 3-3 3-4 Ftgure Selector 3.
Charging Hondle Withdraw/insert Remove/Install Tr,gger Flqure Trigger Chorgmg Handle PI” 3-6 Pin I Chorgmg Remove/lns?oll and Bolt Guide Flgure Remove/ Install Flgure Second Step Push Guide 3-10 Trigger 3-7 Forward lock DlsengagelEngoge Flgure Cotrwr, Rod Springs upon +o open or to closmq Remove/lnstoJl Tokedown Upper Figure 3-8 3-5 3-l Hand 1 Guard Rods Handle
Remove/lnstoll F!rlng Figure Pin Retaining Pin Remove/lnstoJl 3.12 Bolt Figure Remove/Install Firing Figure Pin Retotnrng Corn Pin and Bolt 3-15 Pin Remove/ 3-13 Install Extractor Figure 3-160 Insert large end of tention Ejector Remove/lnstoll Figure Firing Pin Bolt 3.
3-18. 3-19. 2-14. 3-20. AND REPAIR. CLEANING, INSPECTION BEFORE FIRING. The rifle should be inspected as indicated in Section 3, Chapter II, AFTER FIRING. a. Cleaning after Firing: Table 3-2 and 3-3. b. Inspection after Firing: Table 3-4. 3-21. REPLACEMENT OF PARTS. 3-22. All replacement parts are interchangeable and require no adjustments when being installed in this rifle. However, to insure proper function and full reliability, the following precautions should be taken : a.
Bolt Carrier Retaining Bolt Bolt Corn Corner Pin Pin Group Figure Disassemble/Assemble Parts Figure 3-17 \ One drop Mogozlne 3.19b of 011 . Disengage/Engage Figure Receivmg 3.
Table r PREVENTIVE Interval & Sequence No. Before Firing During Firing 3-2. MAINTENANCE SERVICES r After Firing 5 Daily Schedule Operator Item to be Inspected Barrel Assembly Wipe oil from bore and chamber. Bolt Assembly & Barrel Retract bolt to assure free movement between bolt carrier and receiver. Rifle Hand function operation. Lower Receiver & Magazine Check magazine for positive retention and functioning of bolt catch.
Table 3-4. INSPECTION Instructions Part, Components or Area Barrel and Barrel Extension Inspect surfaces for cracks or defects. Check barrel extension for burrs, broken or worn locking lugs. Inspect bore for damage. Front Sight & Operating Rod. Check front sight and operating rod for cracks and general condition. Upper & Lower Receiver Groups. Inspect the receivers and all parts for cracks. Inspect all parts for wear or damage. Check springs for condition, straightness Bolt and Bolt Carrier.
APPENDIX I B/+SlC ISSUE ITEMS LIST Section I l-l. PREFACE. This appendix list the basic issue items, tools, equipment and replacement parts for rifle, 5.56 mm, AR-H. Section 2 BASIC ISSUE ITEMS. The group listings are a breakdown of equipment by a physical description supported by illustrations. (Figures l-2-3 exploded views). l-3. MAJOR ITEMS. I-“. GROUP ASSEMBLY PARTS LIST c 15-Day Maint. Allow Per 106 Equipment -0 32 g I!! g P x : 2 z ._ a Manufacture1 Stock No. Description % .$ =,z 0 e .
a 4-2
GROUP Manufacturer Stock No. ASSEMBLY PARTS LIST - - -z .
4-4
GROUP ASSEMBLY PARTS LIST 15-Day Maint. Allow Per 100 Equipment Is Manufacturer Stock No. 78A ‘i!) 80 81 82 83 84 2662 2660 2661 2764 2765 2780-I 2 Description +I 0 .
0 - 0 -- ’ Yl ;_ 0 --_ - d *s--- a N \ N 4 -6
GROUP 2 ,” ASSEMBLY PARTS LIST Manufacturer Description Stock No. P 2 z! z iz ? ~z “0 .
