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Familiarization of the M203 Grenade Launcher

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Presentation on theme: "Familiarization of the M203 Grenade Launcher"— Presentation transcript:

1 Familiarization of the M203 Grenade Launcher
Ref: FM (M203) STP-19-95B24-SM-TG SSG Christian J. Behr 1st Squad Leader Det 1, 169th MP Co.

2 M203 TASK: Familiarization of the M203
CONDITION: Given an M203 Grenade Launcher, Classroom instruction and this presentation. STANDARD: Be familiar with the M203 operations, functions and capabilities.

3 M203 Description Lightweight single-shot breech loaded pump action
shoulder-fired attached to the M16A1/A2

4 M203 Characteristics

5 M203 Components Handguard Quadrant sight assembly Receiver Barrel
Leaf Sight

6 M203 Capabilities Surpress or disable armored vehicles - EXCEPT TANKS
penetrate concrete timber sandbagged weapons positions some buidlings Illuminate and signal best firing positions: standing supported & prone supported.

7 Leaf Sight Assembly Sight Base Sight Mount Sight Elevation Adjustment
Screw and Elevation Scale Windage Screw and Windage Scale

8 DANGER THE 50-METER MARK ON THE LEAF SIGHT BLADE IS MARKED IN RED TO EMPHASIZE THAT THIS RANGE MUST NOT BE USED FOR ZEROING PROCEDURES. ZEROING IS EXTREMELY DANGEROUS AT 50 METERS OR LESS DUE TO FRAGMENTATION.

9 M203 Trigger Guard Safety

10 M203 Ammunition Several Fixed Type, Low-Velocity 40-mm rounds
high-explosive illuminating signaling CS Training

11 WARNING IF FIRED INTO SNOW, 40-MM ROUNDS MAY NOT HIT HARD ENOUGH TO DETONATE. IF AN UNDETONATED ROUND IS STEPPED ON OR DRIVEN OVER, IT MAY EXPLODE. DURING TRAINING, AVOID THIS HAZARD BY FIRING ONLY TP ROUNDS IN THE SNOW.

12 M203 Ammunition See TM for more details on each type of 40-mm round fired from the M203

13 M203 Clearing Procedures Clear the M16A1/A2 as usual
Push the release button and pull the barrel forward Watch to see if a round extracts Place the safety on SAFE Inspect the breech to the rear until it clicks. This cocks the weapon Place the safety on FIRE

14 M203 General Disassembly Place each part on a mat, table, shelter half, etc. Only disassemble the parts described here. Reassemble in reverse order.

15 M203 Disassembly Loosen the mounting screw first
Remove quadrant sight assembly

16 M203 Disassembly Barrel Assembly First Handguard Assembly First

17 M203 Cleaning Bore Breech insert Other parts Safety mechanism
only use CLP IAW environmental guidelines

18 M203 Inspection All parts-wear, damage, etc. Handguard
Leaf-sight assembly Barrel Cartridge and retainers ***see armorer with unserviceable parts

19 M203 Assembly Install the barrel Lock the barrel

20 M203 Assembly-Continued Install the handguard
Install the quadrant sight assembly

21 WARNING The launcher could fire without pulling the trigger if the sears do not function properly.

22 Conduct a Function Check-M203
Check the operation of the sears check safety in both the SAFE and FIRE positions Check the leaf sight windage adjustment screws for proper operation Check the barrel latch and the stop function

23 M203 REFERENCES Required Related None FM 23-31
TM FM 7-7 Any Questions????????????????


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