M9 and M4 Flashcards
Max range of M-4?
3600 m
What is the caliber of the M-4?
5.56 millimeter
What are the M9’s safety features?
- Ambidextrous manual safety
- Firing pin block
- Half-cock notch
What is the max effective range of the M9?
50 meters
Types of ammunition for M9?
- Ball Cartridge ( M882)
- Hollow Point (MK 243 Mod 0)
- Dummy Cartridge (M917)
What caliber of ammunition does the M9 fire?
9x19 mm (9mm NATO)
Proper —– with the backup iron sight incorporates the following elements: target and properly aligned front and rear sights.
Sight picture
Cycle of operation for the M9?
Firing, unlocking, extracting, ejecting, cocking, feeding, chambering, locking
What is the height/width of the M9?
5.51 in/1.5 in
What additional function does the extractor perform?
Loaded chamber indicator
What is the weight of the M9 (Empty)?
33.86oz
What is the max range of the M9?
1800 meters
The —– is a means of determining range by the size and other details of an object observed?
Appearance of an object method
What is a stoppage?
Interruption in the cycle of operation
What is the weight of the M-4 Carbine?
Loaded w/ 30 rounds in magazine (7.5Ibs)
What is the weight of the M9 (Loaded)?
40.89oz
What type of malfunction is considered extremely dangerous because of the hazard to the shooter?
Failure to extract
Velocity of the M4?
2,970 ft per second
What should you do if you hear a POP or experience a noticeable change in felt recoil firing the M4 carbine?
Do NOT apply Immediate Action, stop firing immediately
M-4 Carbine description?
Light-weight Air-cooled Gas operated Magazine-fed Shoulder-fired weapon Semiautomatic or three-round burst
What are the sights for the M9?
(Front)
Blade, integral slide
(Rear sight)
Notched bar, dovetailed to slide
What is the M4 cycle of operation?
Cooking, feeding, chambering, locking, firing, unlocking, extracting, ejecting.
Sight alignment is more important than sight placement?
True
Ammunition for the M4?
M855- Ball (Green Tip)
M856- Tracer (Orange Tip)
4:1
(Ball/Tracer ratio)
When cleaning the magazine well area of the receiver, care must be taken to —–?
Not dislodge the trigger bar spring.
In a hot, dry (desert) climate, how often should you clean your M-4 carbine?
Clean daily and after firing
What is the length of the M-4?
- 75 inches (Buttstock closed)
33. 00 inches (Extended)
What does the M9 feature (nomenclature)?
Upper receiver, Lower receiver, and Barrel
What is the length of the M9 overall?
8.54in
When conducting preventive maintenance and performance checks on the M9 pistol barrel assembly, where should the operator closely check for cracks?
Locking block
What are the authorized lubricants for cleaning your weapon?
CLP, LSA, LAW
-10 and higher is CLP, LSA
Description of M9
- Manufacturer: Beretta
- Semi-automatic
- Recoil operated
- Magazine fed
- Single-double action
- 9mm NATO caliber
What is the M9 pistol system of operation?
Short recoil system utilizing a falling lock block
Max effective range of M-4?
500m (point target)
600m (area target)
What is the muzzle velocity of the M9?
1230 fps
What is the length of the M9’s barrel?
4.92in
The range determination method where the shooter determines how many 100- meter increments exist between two points is called —–?
100 - Meter Unit of Measure Method
To be clearing barrel official you must have —–?
1) Minimum of 12 months SF experience current authority to bear firearms.
2) Knowledge of the weapon of the weapon they are clearing
3) Documented training on clearing procedures of each weapon
The four fundamentals of marksmanship are —–?
Steady Position
Proper Aim (Sight Picture)
Breathing
Trigger Squeeze
M4 immediate actions?
RTC
A) Roll
B) Tap
C) Charge
Rates of Fire of M-4?
Sustained: 12-15 rpm
Semi: 45 rpm
Burst: 90 rpm
Cyclic: 700-970 rpm
What is the definition of a cook off?
A round that fires as a result of a hot chamber without the trigger being pulled.
What is a Malfunction?
Failure of the weapon.
Can usually be pinpointed to specific part breakage.
If after applying Immediate actions to your M-4 carbine, it still fails to fire, what action should be taken?
Apply Remedial actions.
Four positions for the M4 butt stock?
Closed
1/2 Open
3/4 Open
Full Open