Sleeve And Retaining Ring Are Under Spring Tension

1. Place Buffer and Backplate Assembly (1), with buffer plunger down, in protective jawed vise, and slide Buttstock Assembly Body (2), Spring (3), and Sleeve (4) over Buffer and Backplate Assembly (1).

2. Compress Sleeve (4) and Spring (3) and install NEW Retaining Ring (5) in groove of Buffer and Backplate Assembly (1).

M249 Mechanism

3. Clean residue sealing compound from threads of the rods using a wire brush.

4. Insert Rods of Buttplate Assembly (6) through holes of Buttstock Assembly Body (2) with shoulder rest holes of buttplate to the left.

5. Place Buttplate Assembly (7) in protective jawed vise. Apply a drop of sealing compound (item 10, app D) to the threads of each rod. Install Tubes (8) over Rods and through holes in Buffer and Body Assembly (9). Tighten (turn clockwise) Tubes (8) securely into recessed holes of Buttplate Assembly (7) using an adjustable wrench.

Safety Retaining Spring M249
3-12. MAINTENANCE OF TRIGGER MECHANISM ASSEMBLY

This task covers:

Disassembly/lnspection/Repair/Reassembly

INITIAL SETUP

Tools and Special Tools

Shop Set, Small Arms, Field Maintenance

SC 4933-95-CL-A11 Tool Kit, Small Arms Repairman USMC TAM No. E2900

References

TM 9-1005-201-10 TM 08671A-10/1A

Equipment Condition

Trigger Mechanism removed. Pistol Grip removed.

Personnel Required

MOS 45B Small Arms Repairer MOS 2111 Infantry Weapon Repairer (USMC)

Materials/Parts

As required

DISASSEMBLY

DISASSEMBLY

M249 Safety Retaining Spring
I (3-18.1 blank)/3-18.2 Change 6

3. Using small, flat-tipped screwdriver depress Retaining Spring (5), remove Safety (6) and Retaining Spring (5).

5. Remove Spring Pin (9) and discard. Remove Trigger Assembly (10).

5. Remove Spring Pin (9) and discard. Remove Trigger Assembly (10).

Homemade Revolver Ring

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