What is the maximum effective range with the M4 carbine on a "Point Target"?
What is the maximum effective range with the M4 carbine on an "Area Target"?
What is the maximum effective rate of fire on "SEMI" for the M4 carbine?
45 rounds per minute
What is the maximum effective rate of fire on "BURST" for the M4 carbine?
90 rounds per minute
The M4 carbine has a maximum range of?
What is the cyclic rate of fire for the M4 carbine?
700 - 970 rounds per minute
What is the sustained rate of fire for the M4 carbine?
12 - 15 rounds per minute
What are the proper steps to "Clearing" the M4 carbine?
Place selector lever on "SAFE" if possible, remove magazine, lock bolt to rear, check chamber, ensure selector on "SAFE", let the bolt go forward.
What is the proper loading procedure for the M4 carbine for duty?
Verify weapon clear, selector to "SAFE", close bolt; close ejection port cover, press trigger (hammer should not fall) insert magazine (if authorized), ensure selector on "SAFE".
What is the proper procedure for reloading the M4 carbine?
Remove empty magazine, insert loaded magazine, and hit bolt catch to close the bolt, tap forward assist.
If you pull the trigger and your M4 carbine fails to fire, what must you do
Quickly apply Immediate Action procedures.
What acronym identifies the proper "Immediate Action" procedures for the M4 carbine?
What are the steps to applying "Immediate Action" to the M4 carbine?
Slap upward on the bottom of the magazine; pull charging handle to rear; observe for ejection of round or empty case, ensure chamber is clear; release charging handle; tap forward assist; squeeze trigger to shoot.
How soon should "Immediate Action" be applied to avoid possible cook-off of a round?
Within 10 seconds
How many rounds fired continuously and rapidly through the M4 carbine can cause the weapon to heat up to the cook-off point?
If after applying "Immediate Action" to your M4 carbine, it still fails to fire, what action should be taken?
Apply "Remedial Action" procedures.
What are the proper steps for applying "Remedial Action" to the M4 carbine with a "failure to feed"?
Inspect magazine to ensure rounds are seated.
While applying Immediate Action you observe a round in the chamber of your M4 carbine and you suspect the weapon is hot enough to cause a cook-off, what action should you take?
Keep your face away from the ejection port and remove the round fast. If you can't remove the round within 10 seconds, remove the magazine and let the weapon cool for 15 minutes
If you cannot remove a round from the "hot" chamber of your M4 carbine within 10 seconds, what action should you take?
Keep your face away from the ejection port, point weapon in a safe direction, remove the magazine and let weapon cool for 15 minutes.
What is the definition of a "Cook-off"?
When a round self detonates from heat buildup in a weapon's chamber.
If you hear a "POP" or experience a noticeable change in felt recoil while firing the M4 carbine, what should you do
DO NOT apply "Immediate Action", stop firing immediately because a bullet could be stuck in the barrel.
What could happen if Immediate Action is applied and the M4 carbine is fired with a bullet stuck in the barrel?
The weapon could explode resulting in damage to the weapon and injury or death to the shooter or others
What should you do if you believe a bullet may be stuck in the barrel of your M4 carbine?
Contact your supervisor or control center.
What type malfunction is considered "extremely serious" because of the hazard to the shooter?
Failure to extract
What 3 types of lubricant are authorized for use on the M4 carbine?
CLP, LSA, LAW
What temperature ranges require you to use CLP or LSA on your M4 carbine?
-10 F and above
For operation under arctic conditions below -10 F, what lubricant must be used on the M4 carbine?
Can two different types of lubricant be used simultaneously on the M4 carbine?
What is the definition of "Lightly Lubricated"?
Barely visible to the eye
What is the definition of "Generously Lubricated"?
Enough to be spread with a finger
What must you do before switching lubricants on the M4 carbine?
Completely remove the old lubricant.
Under arctic conditions, what action should be taken to prevent the M4 carbine from freezing up and becoming in-operable
Clear the weapon and hand cycle the weapon every 30 minutes
Under hot, wet (jungle) conditions, how should the M4 carbine be lubricated?
Clean and lubricate more frequently with LSA or CLP
What must the weapon and magazines be frequently inspected for in a hot, wet (jungle) climate?
In a hot, dry (desert) climate, how should the M4 carbine be lubricated?
Lightly lubricate all metal parts using CLP or LSA
In a hot, dry (desert) climate, what must be continually cleaned from the weapon to prevent stoppages
Sand, fine dust
In a hot, dry (desert) climate, how often should you clean your M4 carbine?
Daily or as soon as possible after firing
In a hot, dry (desert) climate, what can you do to help keep dust and sand out of your M4 carbine?
Use muzzle cap, keep ejection port closed, keep magazine installed, use protective bag. Clean weapon and magazines frequently
As a minimum, what items must be contained in the M4 weapon cleaning kit
Cleaning rod sections, cleaning rod handle, eyelet, small arms cleaning brush (tooth brush), bore brush, chamber brush, patches, cloth, pipe cleaners, lubricant and / or CLP.
What lubricants are used to clean the M4 carbine?
What item from your cleaning kit should be used to clean the firing pin hole in the bolt of the M4 carbine?
What item can be used to clean carbon from the back of the M4 carbine bolt assembly?
Old worn bore brush and CLP
How is the chamber brush used to clean the M4 carbine chamber
Attach to cleaning rod handle, execute plunging and turning strokes.
When operating under normal conditions, how should the M4 carbine bolt assembly and cam pin area be lubricated?
Lightly with CLP or LSA
When operating under normal conditions, how should the M4 carbine front sight post be lubricated?
One drop of CLP or LSA onto the front sight post detent pin.
When operating under normal conditions, how should the Gas Carrier Key be lubricated on the M4 carbine?
Place one drop of lubricant into bolt carrier key.
Under normal conditions, what is the proper method of lubricating the ejector?
Apply a few drops of CLP to ejector, press down on ejector several times to work lubricant in.
During cleaning and inspection of the M4 carbine, what items should you check on the barrel assembly?
Compensator looseness Front sight post not bent Gas tube not bent or cracked
When carrying the M4, which safety rule(s) apply?
Treat all weapons as if loaded. Never point the weapon at anything or anyone you are not willing to shoot. Positively identify your target; know what is around and behind your target. Keep your finger OFF the trigger until your sights are on target
Allowing the muzzle of your M4 carbine to sweep you partner while exiting your vehicle is a violation of weapon safety procedures?
True, Never point the weapon at anything you don't intend to shoot.
While responding with your M4 carbine, you carry the weapon with your finger on the trigger. Would this be a violation of weapon safety procedures
Yes, it would be a violation of weapon safety procedures.
While responding to a building alarm with the M4 carbine, you hear movement in the bushes, aim your weapon at the bushes, give the command "Halt" and fire three rounds. Would your actions violate weapon safety procedures?
Yes, you failed to positively identify the target
You respond to a call of "shots fired" on the flight-line during the annual air show. On arrival you observe an armed individual in the crowd of people who points a weapon at you so you immediately fire 5 rounds at the individual without regard for bystanders. Would your actions violate weapon safety procedures?
Yes, because you did not consider the safety of other bystanders around and behind the target
Which statement is true about the characteristics of the M68 Close Combat Optic
Does not require the red aiming dot to be aligned in the center of the scope