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USMC Knowledge > M16 > Flashcards

M16 Flashcards

1
Q

DESCRIBE TH M-16A2 RIFLE.

A

5.56MM, MAGAZINE FED, GAS-OPERATED, AIR-COOLED, SHOULDER-FIRED WEAPON.

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2
Q

WHAT IS THE WEIGHT OF THE M-16A2 RIFLE WITHOUT A MAGAZINE?

A

7.78 POUNDS.

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3
Q

WHAT IS THE WEIGHT OF THE M-16A2 RIFLE WITH FULLY LOADED 30 ROUND MAGAZINE?

A

8.79 POUNDS.

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4
Q

WHAT IS THE LENGTH OF THE BARREL WITHOUT MUZZLE COMPENSATOR OF THE M-16A2 RIFLE?

A

20 INCHES.

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5
Q

WHAT ARE THE THREE TYPES OF AMMUNITION THE M-16A2 RIFLE FIRES?

A

BALL, TRACER, AND BLANK.

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6
Q

WHAT IS THE BEST WAY TO LOAD A 30 ROUND MAGAZINE WITH BALL AND TRACER ROUNDS?

A

LOAD MAGAZINE IN THIS ORDER: 4-TRACER, 5-BALL, 1-TRACER, 5-BALL, 1-TRACER, 5-BALL, 1-TRACER, 5-BALL AND 3-

TRACER ON TOP. ( THE TOP 3-TRACER WILL HELP GET YOU ON TRAGET, THE TRACERS IN BETWEEN HELP YOU STAY ON

TARGET AND THE BOTTOM 4-TRACERS LET YOU KNOW WHEN IT IS TIME TO CHANGE MAGAZINES.)

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7
Q

WHAT IS THE CYCLIC RATE OF FIRE OF HE M-16A2 RIFLE?

A

APPROXIMATELY 800 ROUNDS PER MINUTE.

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8
Q

WHAT IS THE SUSTAINED RATE OF FIRE OF THE M-16A2 RIFLE?

A

12 TO 15 ROUNDS PER MINUTE.

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9
Q

WHAT IS THE MAXIMUM EFFECTIVE RATE OF FIRE IN SEMI-AUTOMATIC OF THE M-16A2 RIFLE?

A

45 ROUNDS PER MINUTE.

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10
Q

WHAT IS THE MAXIMUM EFFECTIVE RATE OF FIRE IN BURST OF THE M-16A2 RIFLE?

A

90 ROUNDS PER MINUTE.

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11
Q

WHAT IS THE MAXIMUM EFFECTIVE RANGE OF THE M-16A2 RIFLE AT INDIVIDUAL / POINT TARGET?

A

550 METERS.

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12
Q

WHAT IS THE MAXIMUM EFFECTIVE RANGE OF THE M-16A2 RIFLE AT AREA TARGET?

A

800 METERS.

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13
Q

WHAT IS THE MAXIMUM RANGE OF THE M-16A2 RIFLE?

A

3,534 METERS.

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14
Q

WHAT IS THE MUZZLE VELOCITY OF THE M-16A2 RIFLE?

A

APPROXIMATELY 3,100 FEET PER SECOND.

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15
Q

WHAT IS THE CHAMBER PRESSURE OF THE M-16A2 RIFLE

A

52,000 POUNDS PER SQUARE INCH.

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16
Q

WHAT TYPE OF FRONT SIGHT DOES THE M-16A2 RIFLE HAVE?

A

POST TYPE SIGHT, ADJUSTABLE FOR ELEVATION CHANGES.

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17
Q

WHAT TYPE OF REAR SIGHT DOES THE M-16A2 RIFLE HAVE?

A

FLIP TYPE, PEEP SIGHT, ADJUSTABLE FOR WINDAGE AND ELEVATION CHANGES.

18
Q

EACH CLICK OF ELEVATION ON THE FRONT SIGHT WILL MOVE THE STRIKE OF THE ROUND APPROXIMATELY HOW FAR?

A

1 1/4 INCH FOR EVERY 100 METERS.

19
Q

EACH CLICK OF ELEVATION ON THE REAR SIGHT WILL MOVE THE STRIKE OF THE ROUND APPROXIMATELY HOW FAR?

A

1 INCH FOR EVERY 100 METERS.

20
Q

EACH CLICK OF WINDAGE ON THE REAR SIGHT WILL MOVE THE STRIKE OF THE ROUND APPROXIMATELY HOW FAR?

A

1/2 INCH FOR EVERY 100 METERS.

21
Q

WHAT ARE THE THREE MAIN GROUPS OF THE M-16A2?

A

UPPER RECEIVER GROUP, LOWER RECEIVER GROUP, AND BOLT CARRIER GROUP.

22
Q

WHAT IS THE IMMEDIATE ACTION FOR THE M-16A2 RIFLE?

A

TAP, RACK, AND BANG ATTEND TO FIRE.

23
Q

WHAT IS BATTLESIGHT ZERO (BZO)?

A

BATTLESIGHT ZERO IS THE SIGHT-SETTING A MARINE WOULD HAVE ON HIS WEAPON THAT WILL ALLOW HIM TO HIT A MAN-SIZED TARGET AT 300 METERS.

24
Q

WHAT IS THE FIRST STEP IN DISASSEMBLY OF THE M-16A2 RIFLE?

A

CLEAR IT!

25
Q

WHAT IS THE CYCLE OF FUNCTIONING OF THE M-16A2 RIFLE?

A

FEEDING, CHAMBERING, LOCKING, FIRING, UNLOCKING, EXTRACTING,EJECTING, COCKING.

26
Q

WHAT ARE THE THREE POSITION OF HE SELECTOR LEVER ON THE M-16A2 RIFLE?

A

SAFE, SEMI, AND BURST.

27
Q

ON THE REAR SIGHT OF THE M-16A2 RIFLE, WHAT IS THE DIFFERENCE BETWEEN THE TWO FLIP TYPE APERTURES?

A

HE LARGER APERTURE (MARKED 0-2) IS USED FOR 0-200 METER RANGE AND ONLY USED WHEN THE REAR SIGHT IS ALL THE WAY DOWN. THE SMALLER APERTURE IS UMNARKED AND USED FOR MOST FIRING SITUATIONS. IT IS USED IN CONJUNCTION WITH THE ELEVATION KNOB FOR 300 TO 800 METER TARGETS.

28
Q

WHAT IS THE PREFERRED LUBRICANT FOR THE M-16A2 RIFLE?

A

CLP (CLEANER, LUBRICANT, PRESERVATIVE).

29
Q

WHAT IS THE PREFERRED LUBRICANT FOR THE M-16A2 RIFLE WHEN EXTREMELY COLD OUT?

A

LAW (LUBRICATING OIL, ARCTIC WEAPONS).

30
Q

WHAT SHOULD BE OPEN WHEN OPERATING THE M-16A2 FRIFLE AND WEARING ARCTIC MITTENS?

A

THE TRIGGER GUARD.

31
Q

WHAT SHOULD YOU CHECK FOR IF THE M-16A2 RIFLE WON’T FIRE?

A

SELECTOR LEVER ON SAFE, IMPROPER ASSEMBLY OF HE FIRING PIN, TOO MUCH OIL IN THE FIRING PIN RECESS, DEFECTIVE OR NO AMMUNITION, OR TOO MUCH CARBON ON THE FIRING PIN OR IN THE FIRING PIN RECESS.

32
Q

WHAT SHOULD YOU CHECK FOR IF THE M-16A2 RIFLE BOLT WON’T UNLOCK?

A

DIRTY OR BURRED BOLT. (SEE YOUR ARMORED FOR BURRED BOLT PROBLEMS)

33
Q

WHAT SHOULD YOU CHECK FOR IF THE ROUND WON’T EXTRACT FROM THE M-16A2 RIFLE?

A

BROKEN EXTRACTOR PIN (SEE YOUR ARMORER), DIRTY OR CORRODED AMMUNITION,CARBON IN THE CHAMBER,

FOULING OR CARBON IN THE EXTRACTOR RECESS OR LIP.

34
Q

WHAT SHOULD YOU CHECK FOR IF THE M-16A2 RIFLE FAILS TO FEED?

A

DIRTY OR CORRODED AMMUNITION, DIRTY MAGAZINE, DEFECTIVE MAGAZINE, TO MANY ROUNDS IN THE MAGAZINE, MAGAZINE NOT FULLY SEATED, OR ACTION OF BUFFER ASSEMBLY IS RESTRICTED.

35
Q

WHAT IS THE MOST COMMON CAUSE OF A DOUBLE FEED WITH THE M-16A2 RIFLE?

A

DEFECTIVE MAGAZINE

36
Q

WHAT WILL HAPPEN IF THE CAM PIN ISN’T INSTALLED IN THE BOLT GROUP OF THE M-16A2 RIFLE?

A

THE RIFLE WILL STILL FIRE AND WILL EXPLODE!

37
Q

WHY SHOULD YOU NOT EXCHANGE BOLTS FROM ONE M-16A2 RIFLE TO ANOTHER?

A

DOING SO MAY RESULT IN INJURY TO, OR DEATH OF PERSONNEL.

38
Q

WHY SHOULD YOU NEVER GREASE OR LUBRICATE AMMUNITION TO BE FIRED IN THE M-16A2 RIFLE?

A

IT WILL RESULT IN DANGEROUSLY HIGH PRESSURE IN THE CHAMBER AND BARREL.

39
Q

WHAT SHOULD YOU DO IF FIRING THE M-16A2 RIFLE YOU HEAR AN AUDIBLE “POP”?

A

CEASE FIRING! IT COULD BE A STUCK BULLET IN THE BARREL. (IF IT IS A STUCK BULLET IN THE BARREL OR BORE, TURN

THE WEAPON IN TO THE ARMORER.)

40
Q

WHAT IS THE HOLE IN THE M-16A2 RIFLE BUTT PLATE SCREW FOR?

A

TO ALLOW WATER TO DRAIN OUT OF THE BUTT PLATE.

USMC Knowledge (19 decks)

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