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Army Study Guide Questions > M4 > Flashcards

M4 Flashcards

1
Q

What is the FM concerning the M4 Rifle

A

FM 3-22.9

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2
Q

What is the first thing you must done when you handle a weapon

A

Make sure you clear it.

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3
Q

Name the Five phases in Basic Rifle Marksmanship

A 
Preliminary Rifle Instruction
Downrange Feedback
Field Fire
Advanced Rifle Marksmanship
Advanced Optics Laser and Iron sights
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4
Q

What is the purpose of a weaponeer

A

Capable of simulating all BRM live fire scenarios without firing rounds. Immediate feedback is available for critiquing the soldiers application of integrated offering while using the weaponeer device to include misfiring procedures

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5
Q

What are the four fundamentals of Marksmanship

A

Steady Position
Proper Aim
Breathing
Trigger Squeeze

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6
Q

During PMI what are the only two firing positions tone

A

Individual foxhole unsupported

prone unsupported

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7
Q

What are the two basic elements of sight picture

A

Sight alignment

placing of an aiming point

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8
Q

What does the acronym SPORTS stand for?

A 
Slap
Pull
Observe
Release
Tap
Shoot
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9
Q

What is remedial action?

A

the continuing effort to determine the cause of stoppage and to try to clear the stoppage once it is identified

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10
Q

Describe the proper procedure for applying remidal action to the M4

A

Try to place the weapon on safe
remove the magazine
Lock the bolt to the rear
Place the weapon on safe if not already done

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11
Q

Describe the proper procedure for applying immediate action to the M4

A

Slap upward on the magazine to ensure it is fully seated, and the magazine follower is not jammed

Pull the charging handle fully to the rear

Observe for ejection of a round or expended cartrdge (if it fails to eject perform remedial action)

Release the charging handle without riding it forward.

Tap the forward assist to ensure bolt closure

Squeeze the trigger and try to fire

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12
Q

What are the steps required in order to mechanically zero the M4?

A

Adjust the front sight post until the base is flush with the front sight post housing

Adjust the elevation knob counterclockwise until the rear assembly rests flush with the detachable carrying handle and the 6/3 marking is aligned with the index line on the left side of the carrying handle

Adjust the aperture so the unmarked aperture is up and the 0-200 meter aperture is down Rotate the windage knob to align the index mark on the 0-200 meter aperture with the long center index line on the rear sight assembly

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13
Q

What are the steps required in order to battle sight zero the M4

A

Adjust the elevation knob counterclockwise until the rear assembly rests flush with the detachable carrying handle and the 6/3 marking is aligned with the index line on the left side of the carrying handle.

Adjust the aperture so the unmarked aperture is up and the 0-200 meter aperture is down. Rotate the windage knob to align the index mark on the 0-200 meter aperture with the long center index line on the rear sight assembly.

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14
Q

Is SPORTS an immediate or remedial action?

A

Immediate Action

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15
Q

What is Immediate action

A

Quickly applying a possible correction to reduce a stoppage without performing troubleshooting procedures to determine the actual cause

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16
Q

How many times should immediate action be applied to a weapon

A

Once, if it fails apply remedial action

17
Q

What is a malfunction

A

The weapon ceasing to fire due to stoppage resulting from mechanical failure of the weapon magazine or ammo

18
Q

Name the different categories of malfunction for the M4 rifle

A

Failure to feed, chamber or lock
Failure to fire cartridge
Failure to extract
Failure to eject

19
Q

What is stoppage

A

Failure of an automatic or semi automatic weapon to complete cycle of operation

20
Q

How do you clear stoppage

A

Apply immediate or remedial action

21
Q

What is the definition of maximum effective range

A

The greatest distance to which a soldier may be expected to make a target hit

22
Q

What does CLP stand for?

A

Cleaner - Contains solvents that disolve residue and carbon from firing
Lubricant - Lays down a layer of teflon as it tries to provide lubrication
Perservative - Prevents rust from forming

23
Q

Describe the M4 rifle

A

A 5.56 MM magazine feed, gas operated, air cooled, semi-automatic or three round burst, hand held shoulder fired weapon

24
Q

What are the 7 types of ammunition that can be used with the M4 rifle?

A 
Ball
Trace
Dummy
Blank
Red tip Ball
Green tip Ball
Short range training ammo
25
Q

Describe the weights of the M4 rifle without magazine and sling, with sling and loaded 20 round magazine, with sling and loaded 30 round magazine

A

Without magazine: 6.49 Pounds
With Sling and 20 round magazine: 7.19 pounds
With sling and 30 round magazine 7.50 pounds

26
Q

Describe the maximum effective rates of fire for the M4 Rifle

A

Semiautomatic - 45 rounds a minute
Burst - 90 rounds a minute
Sustained 12-15 rounds a minute

27
Q

What is the muzzle velocity of the M4 rifle?

A

2970 feet per second

28
Q

Describe the ranges for the M4 rifle

A

Maximum Range is 3600 meters
Maximum Effective range for a point target is 500 meters
Maximum Effective range for an area target is 600 meters

29
Q

Describe the barrel rifiling of an M4

A

Right hand twist 1/7

30
Q

What is the basic load of ammunition for the M4

A

7 magazines containing 30 rounds each for a total of 210 rounds

31
Q

The elevation knob adjusts the point of aim for an M4 by how much?

A

300-600 meters

32
Q

What is the overall length of the M4 rifle?

A

Buttstock closed 29.75 inches

Buttstock open 33.00 Inches

33
Q

What are the four positions of the buttstock for the M4 rifle

A

Closed
1/2 open
3/4 open
Full open

34
Q

What are the 8 steps in the functionining of an M4 rifle

A 
Feeding
chambering
locking
Firing
unlocking
extracting
ejecting
cocking
35
Q

What part of the M4 rail adapter system may be removed to perform PMCS

A

Only the lower assembly

36
Q

Describe the proccedures for clearing the M4 rifle

A

Have a battle buddy to help observe the process

Ensure the weapon is in the safe position

Point the weapon in the designated safe direction

Remove the magazine

Lock the bolt to the rear

Have observer verify there is no round chambered

return the bolt to the foward position

Place the weapon on Semi

fire the weapon

Charge the weapon

return the bolt to the forward position

place weapon on safe

Close the ejection port

37
Q

How do you perform a functions check on the M4 rifle

A

Clear the weapon

1. Check to ensure carbine is clear and the selector lever is on SAFE.

2. Check M4 or M4A1 carbine with selector lever in the SAFE position.
a. Pull the charging handle to the rear and release it.
b. Place the selector lever in the SAFE position.
c. Squeeze the trigger (the hammer should not fall).
d. Stop the function check if the carbine fails to function properly. Turn in malfunctioning carbine to unit armorer.
3. Check M4 or M4A1 carbine with selector lever in the SEMI position.
a. Place the selector lever in the SEMI position.
b. Squeeze the trigger, holding it to the rear (the hammer should fall).
c. Continue to hold the trigger to the rear while pulling the charging handle to the rear and releasing the charging handle.
d. Release the trigger with a slow, smooth motion until the trigger is fully forward (the hammer should not fall).
e. Squeeze the trigger (the hammer should fall).
f. Stop the function check if the carbine fails to function properly. Turn in malfunctioning carbine to unit armorer.
4. Check M4A1 carbine with selector lever in the AUTO position.
a. Place the selector lever in the AUTO position.
b. Pull the charging handle to the rear and release it.
c. Squeeze the trigger; the hammer should fall.
d. Hold the trigger to the rear and cock the weapon.
e. Fully release the trigger; squeeze it to the rear again; and the hammer should not fall.
f. Stop the function check if the carbine fails to function properly. Turn in malfunctioning carbine to unit armorer.
5. Check M4 carbine with selector lever in the BURST position.
a. Place the selector lever in the BURST position.
b. Pull the charging handle to the rear and release it.
c. Squeeze the trigger and hold it to the rear; the hammer should fall.
d. Continue to hold the trigger to the rear: pull the charging handle to the rear and release it three times.
e. Release the trigger.

Army Study Guide Questions (14 decks)

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