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FirstWeekWeapons Flashcards

1
Q

M14 type of feed?

A

20 round staggered box magazine

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2
Q

What is M1911A1’s country of origin?

A

USA

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3
Q

M4 Super 90 PPF?

A

Length of the firing pin and disconnector

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4
Q

Sustained Rate of Fire

A

Gunners normal rate of fire

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5
Q

Trigger Bar

A

A connecting bar operating between the trigger and the sear. Nothing more then an extension of the trigger.

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6
Q

M1911A1 PPF?

A

Disconnector

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7
Q

M2HB system of operation?

A

Recoil, select fire

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8
Q

Breechblock

A

The component which seals the breech and blocks gases from the fired cartridge from exiting to the rear of the chamber.

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9
Q

Cyclic Rate of Fire

A

Gunner’s Rate of Fire during combat emergencies; the maximum number of rounds an automatic weapon can fire in one minute

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10
Q

M14 cartridge type?

A

7.62x51mm

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11
Q

M14 applied safety?

A

Blocks the hammer and trigger

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12
Q

Single action

A

The weapon will only fire when it has been manually cocked

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13
Q

M4 Super 90 locking system?

A

Rotating bolt

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14
Q

Double Action

A

The trigger bar will cock the weapon when the trigger is pulled and the sear will release the hammer when the trigger has reached its maximum rearward movement.

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15
Q

M240B PPF?

A

Length of the firing pin?

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16
Q

M2HB country of origin?

A

USA

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17
Q

M60 cartridge type?

A

7.62x51mm

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18
Q

What are the components of a cartridge?

A

Bullet, Powder, Primer, Case

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19
Q

Internal Ballistics

A

The study of the motion of a projectile in a gun barrel or tube. Simply, it is everything that happens inside the firearm from primer ignition until the projectile leaves the barrel.

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20
Q

M240B country of origin?

A

Belgium

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21
Q

Rate of Fire

A

The number of rounds a given weapon can fire in one minute, normally given in rounds per minute(RPM)

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22
Q

M240B Locking system?

A

Lowering Bolt

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23
Q

Semi-auto

A

The weapon will fire only one round per pull of the trigger. After that the trigger and disconnector must be reset before the next round can fire.

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24
Q

M2HB PPF?

A

Nose of the cocking lever

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25
M60 country of origin?
USA
26
M4 Super 90 country of origin?
Italy
27
Cartridge type for M249 SAW?
5.56x45mm
28
M240B type of feed?
100 rd SLD MLB
29
M14 PPF?
Firing pin tang and metal bridge
30
Rifling
Helix grooves in the bore of the weapon that spin the bullet for accuracy commonly referred to as "lands and grooves"
31
Types of firing
Single action, double action, semi auto, automatic, selective fire
32
M4 Super 90 applied safety?
Blocks the trigger
33
M249 SAW Applied Safety?
Blocks the Sear
34
Automatic Only
When the trigger is pulled the weapon will fire continuously until the trigger is released (re-engaging the sear) or all ammunition is expended.
35
M1911A1 Locking system?
Rising Barrel
36
Rapid Rate of Fire
Gunner's Rate of fire when trying to gain fire superiority
37
M60 locking system?
Rotating bolt
38
M4 Super 90 cartridge type?
12 gauge
39
M249 SAW type of feed?
200 re SLD MLB, 30 rd staggered box magazine
40
M2HB locking system?
Rising locking block
41
External Ballistics
The study of the motion of a projectile in flight from the time it leaves the muzzle until it impacts the target.
42
M1911A1 system of operations?
Recoil, Semi-Auto, Single Action Only
43
Ballistics
The study of projectiles from the time of shooting to the time of impact.
44
M2HB practical range?
1830m
45
Headspace
The distance from the breechblock to the part of the chamber that stops the forward movement of the cartridge case.
46
M240B applied Safety?
Blocks the sear
47
M60 type of feed?
100 rd SLD MLB
48
M1911A1 applied safety?
Blocks the sear and hammer
49
M14 practical range?
460m
50
M2HB cartridge type?
12.7x 99mm
51
What is Battle Sight?
Range that allows you to hit the target between the throat and waist without sight adjustment
52
M249 SAW Locking system?
Rotating Bolt
53
M240B practical range?
1100m
54
Muzzle Break
A device which deflects the gases as they exit the muzzle of the weapon, helps to reduce some of the felt recoil.
55
M14 system of operation?
Gas tappet, select fire
56
M1911A1 practical range?
50m
57
M1911A1 type of feed?
7 round Inline box magazine
58
M60 practical range?
1100m
59
M249 SAW practical range?
600m
60
M60 system of operation?
Gas tappet, auto only
61
Trigger
A finger actuated lever used to activate the firing mechanism, thus firing the weapon.
62
M240B system of operation?
Gas Blast, Auto Only
63
M60 applied safety?
Blocks the sear
64
Sear
Component retained under spring tension that releases, by means of a the trigger, either a firing pin, hammer, or bolt.
65
M249 SAW PPF?
Length of firing pin
66
M249 SAW system of operation?
Gas blast, auto only
67
Selective Fire
The weapon can fire semi-automatic or automatic. Burst firing of a set number of rounds per squeeze of the trigger 2,3,4 etc.
68
Extractor
A device which attaches to the rear of the cartridge groove or rim, utilized to pull the cartridge from the chamber.
68
Trajectory
The path the projectile takes from the muzzle of the weapon to the target. The bullet will begin to drop immediately upon exiting the weapon due to gravity and atmospheric resistance.
70
What are the 3 ways firing pins receive their energy?
``` -a larger mass strikes them (Free Floating) -a spring provides their energy (Inertia, Percussion, Striker) -Their own mass creates the energy (Fixed) ```
73
Ejector
180 degrees opposite the ejection port, May also be a tang of metal attached to the receiver, this is normally indicated by a cut out on the bolt group.

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