Note

2-55

2-16. UPPER RECEIVER AND BARREL ASSEMBLY, RIFLE BARREL ASSEMBLY, AND UPPER RECEIVER ASSEMBLY (CONT).

f. REASSEMBLY (CONT)

NOTE

Refer to operator's manual for 'buddy system" procedure on installing hand guard assemblies

Install top of upper handguard assembly (12) In tube cap (13) while pushing down on handguard slip ring (14). Push bottom of upper handguard assembly (12) in place and release handguard slip ring (14) to lock handguard assembly In place

M16 Handguard Drawing

9. Install top of lower handguard assembly 1 5) In tube cap (13) while pushing down on handguard slip ring (14) Push bottom of lower handguard assembly (15) In place and release handguard slip ring {14) to lock both handguard assemblies In place

10. Reassemble rifle, refer to page 2-68

2-56

2-17. LOWER RECEIVER AND BUTTSTOCK ASSEMBLY.

This task covers:

a. Disassembly

d. Repair

b. Cleaning

e. Lubrication

c. Inspection

f. Reassembly

INITIAL SETUP

Tools

Equipment Conditions

(ARMY) Small Arms Repairman Tol Kit

2-34 Lower receiver and buttstock assembly

(item 3, app B)

removed

Pivot Pin Removal Tool (fig. E-3, app E)

Pivot Pin Installation Tool (fig. E-4, app E)

General Safety Instructions

To avoid injury to your eyes, use care when

Materials/Parts

removing and installing spring-loaded parts.

Lubricant, solid film (SFL) (item 21,

When using solid film lubricant or dichloro-

app D)

methane, be sure the area is well ventilated.

Screw, self-locking (item 6, p C-1 1)

References

TM 9-1005-319-10 (operator's manual)

a. DISASSEMBLY

Change 5 2-57

2-17. LOWER RECEIVER AND BUTTSTOCK ASSEMBLY (CONT).

a. DISASSEMBLY (CONT)

CARBINE ONLY

4A. Extend buttstock assembly (11.1).

4B Grasp the lock release lever (11.2) in the area of the retaining nut (11.3), pull down-ward, and slide buttstock to the rear to separate the buttstock assembly from the lower receiver extension

2-58 Change 3

WARNING

To avoid injury to your eyes, use care when removing and installing spring-loaded parts

NOTE

Catch pivot pin detent and helical spring as pivot pin is removed (see step 6 on next page)

5. Depress pivot pin detent and spring and remove pin or Insert fabricated pivot pin removal tool (12) to compress pivot pin detent Turn pivot pin (13) a quarter turn Remove tool and pivot pin

Front Take Down M16 Removal

6. Be sure to hold cupped hand in front of pivot pin detent (14) and helical spring (15) to prevent loss of pivot pin detent and helical spring.

NOTE

If helical spring (15) will not come out, use a wire to pull it out.

NOTE

Make sure the hammer is cocked and the selector lever is not set on BURST or AUTOMATIC before removing the buffer assembly.

7. Press buffer assembly (16) in about 1/4 inch (0.635 cm). Depress buffer retainer (17) and release buffer assembly (16) and action spring (18). Remove buffer assembly(16) and action spring (18) from receiver while depressing buffer retainer (17).

b. CLEANING

Clean all items (operator's manual). Remove carbon deposits

Change 4 2-59

1 2-17. LOWER RECEIVER AND BUTTSTOCK ASSEMBLY (CONT).

c. INSPECTION I

1. Inspect buffer assembly (1, 2. 3, or 3 1) for cracks or damage

RIFLE ONLY

a. Some old buffers (1) have a hole with pin installed which protrudes equally on each side approximately 1/32 inch (O 08 cm)

b. Some buffers (2) have a hole In the housing but no pin c. New buffers (3) do not have a hole In buffer body or a pin.

BOTH WEAPONS

2. If cracked or damaged, replace.

3. Check free length of action spring (4). The free length FOR RIFLE ONLY must be between 11 3/4 inches (29.85 cm) mini- mum and 13 1/2 inches (34 29 cm) maximum, FOR CARBINE ONLY must be between 10 1'/16 inches (25,56 cm) minimum and 11 114 Inches (28.58 cm) maximum, If not, replace Do not attempt to adjust the length by stretching the action spring

4. Inspect lower receiver (5) (without further disassembly) for legibility of serial number ARMY ONLY: If the serial number is hard to read, evacuate to direct support maintenance AIR FORCE ONLY: If the serial number is hard to read, evacuate to depot maintenance

2-60 Change 3

Plyometrics Fitness Adrenaline

Plyometrics Fitness Adrenaline

It Seems Incredible That You Can Get Your Ideal Body By Jumping. This Book Is One Of The Most Valuable Resources For The Fitness Adrenaline.

Get My Free Ebook


Post a comment