Weapon Fundamentals Flashcards
1
Q
options for marine corp Service rifle
A
M16A4
M4 carbine equipped with a rifle combat optic
2
Q
6 ways to describe a Marine Corp Service rifle
A
lightweight
5.56mm
magazine fed
gas operate
air5 cooled
shoulder fired rifle
3
Q
mm caliber of the Marine Corp Service rifle
A
5.56mm
4
Q
what feeds the Marine Corp Service rifle
A
magazine fed
5
Q
how is a Marine Corp Service rifle operated
A
gas-operated
6
Q
how are Marine Corp rifles cooled
A
air-cooled
7
Q
2 ways to fire the Marine Corp Service rifle
A
semi-automatic (single shot)
burst (3 routn burst)
8
Q
maximum effective range of M264A
A
maximum effective range of 550 meters
9
Q
maximum effective range of the M4 carabine
A
550 meters
10
Q
what helps reduce the overall weight of the Marine Corp Service rifle
A
alumbium receiver
11
Q
RCO
A
rifle combat optic
12
Q
purpose of the ejection port on the Marine Corp Service rifle
A
prevents dirt and sand from getting in through the ejection port.
13
Q
normal state of the ejection port of a firearm
A
keep closed to keep sand/dirt from getting in
14
Q
what is on the Marine Corp Service rifle trigger guard
A
spring-loaded retaining pin that, when depressed, allows the trigger guard to be rotated out of the way for access to the trigger while wearing cold weather clothes
15
Q
when does the ejection port of the Marine Corp Service rifle open
A
automatically by actions of the bold carrier
16
Q
purpose of the rail system in the Marine Corp Service rifle
A
rail system protects the gas tyube
17
Q
composition of the Marine Corp Service rifle bore and chamber
A
chrome=plated to reduce wear and fouling
18
Q
8 components of Marine Corp Service rifle
A
bolt carrier assembly
charging handle assembly
lower receiver
buttstock assembly
magazine
sling
Upper receiver
barrel assembly
19
Q
role of bolt carrier assembly
A
stripping
chambering
locking
firing
extration
ejection
20
Q
role of the carging handle assembly
A
initial charging of the weapn
21
Q
what happens when a firearm is charged
A
22
Q
role of the hatch latch
A
hatch latch locks the chargin handle assembly in the foreard position during sustained fire to prevent injury to the operation
23
Q
role of the magazine
A
holds cartridges ready for feeding, provides a guide for positioning cartridges for stripping, and provides quick reload capabilities for hte sustained firing
24
Q
holds a weapon on your person
A
sling
25
what chambers a bullet
barrel chambers the cartridge for firing and directs the service rifle
26
how does a DODI help left handed shooters
ambidesterous selector lever that can be added to the weapon for left handed shooters only
27
lever to determine how bullets are fired
selector leaver: (safe, semi, burst)
28
"semi"
one shot fired per trigger pull
29
one shot fired per trigger pull
semi
30
prevents a gun from shootin
safe on the selector level
31
end of exercise
"index"
32
what does "burst" do
continue to fire its cycle of operation until interrupted from the burst cam (limits to 3)
33
what stops firing if you are using "burst"
selector level is on burst
burst ca, limits max rounds to three
34
burst cam
limits # consecutive bullets fired w/1 trigger pull (3)
35
drop to the ground post shooting
magazine release button
36
what happens when the charging handle is pulled to the rear
the bolt unlocks from the barrel extension locking lugs,
the bolt carrier group moves to the rear of the recceiver
37
purpose of the gas deflectort
prevents the gas from blowing into the aiming eye
38
when does the bolt-carrier group lock to the rear
if the charging handle is pulled to the rear when the lower protion of the bolt catch is depressed, the bolt carrier group locks to the rear
39
aka RCO
AN/PVQ-31
40
what is RCO
illuminated teloscopic sight that does not cauneed batterpower
41
which weapon system is teh AN/PVQ-31B designed for
M4 carabiner
cannot be switched between different weapons systems
42
types of amunition authorized for use wtih the Service riffle
ball -M855
tracer - M856
dummy - M199
blank -M200
MK-262 (MOds 0 and 1)
MK-318 Mod 0
43
ball amunition for service rifle
primary amunition for Servie rifle
identified by green tip
front 1/3: solid steel
back 2/3: lead alloy
44
bullet with green tip
ball (M855)
45
bullet with bright red tip
tracer
46
what does a tracer bullet look like
bright red tip
47
primary uses of tracer bullets
observation firing
incendiary effect
signaling
48
ratio of tracer bullets to ball bullets
no greater than 1:1
preferred 1 traer round to 4 ball rounds
49
cartridge used during dry fire
dummy (M199)
six grooves along the side
contains no propellant or primer
primer well is open to prevent damage to the firing pin
50
how to identify a dummy round
siz grooves along the side of hte ase.
ontains no propellants/primer
primer well is open to prevent damage to the firing pin
51
identify blank round
case mouth closed with seven petal rosette crimp
no projectile
violet tip
52
compare dummy rouint to blank
dummy: 6 grooves aroudn the size. primer well is open to prevent damage to the firing pin
blank round: seven petal rosette crimp tip that is violet
53
study of projectiles and their effects
ballistics
54
what happens inside a projectile when it is fired
powder burns, chamber pressure builds, projectile is pushed forward through the throat, engaging the rifling
power in the cartridge continues to burn, adding pressure and increasing the velocity of the projectile
55
bullet rotation
as the round travels down the barrel, it is rotated by the rifling cut into the barrel
-the rotation stabilizes the round once it exits the barrell
***longer heavier rounds needmore spin than lighter shorter
56
what happens if a round is over-stabilized (rotated as it leaves
the projectile will perform poorly when it impacts body tissue, puncching ystraight through with minimal disturbance of hte trissue
57
what happens if a bullet's rotation is under stabilized
it will not travel accurately and will be heavility affected by the atmospheric conditions and drag
58
Rule 1
"treat every weapon as it it were loaded"
59
Rule 2
Never point a weapon at anything you do not intend to shoot
60
Rule 3
Keep your finger straight and off the trigger until you are ready to fire
61
Rule 4
Keep the weapon on SAFE until you intend to fire
62
Rule 1 & 2
1. treat every weapon as if it were loaded
2. never pojnt a weapon at anything you do not intend to shoot
63
Rule 3 & 4
3. keep your finger straight and off the trigger until you are ready to fire
4. keep the weapon on SAFE until you intend to fire
64
Rule 2 & 3
2. Never point a weapon at anything you do not intend to shoot
3. keep your finger straight and off the trigger until you are ready to fire
65
describes a weapon's readiness
a weapon's readiness is described by conditions
66
steps involved in loading/unloading a gun
the steps involved in loading/unloading a gun takes the Service rifle through specific conditions fo readiness for live fire
67
condition 1
safety on
magazine inserted
round in chamber
bolt forward
ejection port cover closed
68
condition 2
not applicable in the Service rifle
69
condition 3
safety on
magzine inserted
chamber empty
bolt forward
ejection port closed
70
condition 4
safety on
magazine removed
chamber empty
bolt foreard
ejejction port cover closed
71
safety in condition 1
safety on
72
magazine in condition 1
magazine inserted
73
round in condition 1
round in chamber
74
ejection port in condition 1
ejection port closed
75
safety in all conditions
safety on
76
how do you determine a weapon's readiness?
its condition
77
what must happen when you take control of a weapon
its condition must be determined and known
78
3 steps to determine the condition of a weapon
-determine if the magazine is present
- ensure the weapon is on SAFE
- conduct a chamber check
79
firs rule of weapon safety
Rule 1: treat every weapon as if it were loaded
80
second rule of weapon safety
Rule 2: never point a weapon at anything you do not intend to shoot
81
treat every weapon as if it were loaded
Rule 1 of weapon safety
82
never point a weapon at anything you do not intend to shoot
rule 2 of weapon safety
83
command to stop shooting
CEASE FIRE
84
command where someone has to show the weapon is not loaded
SHOW CLEAR
85
CLP
cleaner, lubricant, and preservative
86
lubricant used for service rifle
CLP: cleaner, lubricant, and preservative
*only not used in cold Arctic condtions
87
4 tools to clean a weapon
CLP
rod
brutches
patch holder
88
what happens in double-action mode
causes the hammer to move to the rear as the trigger is being pulled
89
3 major components of the M9
slide assembly
barrell assembly
receiver
90
maximum effective range of the M9
50 yards (54.7 yds)
91
how many rounds does the magazine of teh M9 service pistol hold
15 round
92
what happens when the last round of the M9 service pistol is fired
the slid automatically locks to the rear
93
balls used by the M9 service pistol
9mm
94
8 steps of firingthe M9 service pistol
firing
unlocking
extracting
ejecting
cocking
feeding
chambering
lociking
95
what does a dummy round look like
hold erilled into the side and contains no primer
96
strip used to keep a pistol on your person
laynard
97
why should you never apply oil or grease to M9 amunition
oil can produce excess chamber pressure or damage operating parts/
98
6 commands when firing a M9 service pistol
Load
Make REady
Fire
Cease FIre
UNload
Unload, show clear
99
2 methods for checking the condition of a M9 service pistol
checking the round indicator on the right side of hte pistol
conducint a chamber check
100
what condition is a weapon in during the "LOAD" command when firing M9
take weapon from condition 4 to 3
101
what condition do you put a M9 service pistol in when you "Unload"
put into condition 4
102
stoppage
unintentional interruption in teh cycle of operation
103
unintentional interruption in the cycle of operation of a M9 service pistol
stoppage
104
when do you discover a stoppage
when a M9 service pistol won't fire
105
how can you prevent M9 stoppages
proper care, cleaning, lubrication, shooter error
106
purpose of knife fighting
cause massive trauma and damage to an aggressor by exeucting the verticle thrust or verticle slash techniques
107
goal of knife fighting
attack soft body vital targets that are readily accessible
108
weight of a M67 fragmentation grenade
14 ounces
109
killing radius of a M67 fragmentation hand grenade
5 meters
110
effective casualty-producing radius of a M67 fragmentation hand grenade
15 meters
111
danger zone of a M67 fragmentation grenade
effective casualty-producing radius = 15 meters
killing radius = 5 meters
112
how to remove the pin of a M67 fragmentation grenade
pull ring with index/middle finger of the nonthrowing hand
remove the safety pin with a pulling and twisting motion
113
HIMARS
high mobility artillerary rocket system
114
MLRS
multiple launch rocket system
115
FMTV
family of medium tactical vehicles
116
weight of HIMARS
24,000 lbs
117
maximum range of HIMARS
45 miles
118
maximum rate of fire of HIMARS
6 rockets
119
crew of HIMARS
3 crew
120
mximum speed of HIMARS
53 mph
121
difference between a blank and dummy round
A dummy is not to be confused with a blank, a cartridge for a firearm that contains propellant and a primer but no bullet or shot; a dummy does not produce an explosive sound like a blank does.
