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ARMY STUDY GUIDE > ***MK19 Grenade Launcher > Flashcards

***MK19 Grenade Launcher Flashcards

1
Q

What size projectile is fired from the MK19?

A

40 mm

FM 3-22.27 Nov 2003 / PDF 1

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2
Q

What is a special feature of the barrel of the MK19?

It is designed to not overheat even after prolonged firing

A

(FM 3-22.27 Nov 2003 / 1-2 / PDF –8)

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3
Q

What is a MK64, MOD7?

A

The gun cradle for the MK19

FM 3-22.27 Nov 2003 / 3-1 / PDF 39

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4
Q

Describe the MK19.

A

An air-cooled, blow back operated, belt-fed machine gun that is fed by a disintegrating metallic-link belt and fires
40mm grenade cartridges
(FM 3-22.27 Nov 2003 / 1-2 / PDF 7)

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5
Q

What is the length of the MK19?

A

43.1inches

FM 3-22.27 Nov 2003 / 1-2 / PDF 12

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6
Q

What is the maximum range of the MK19?

A

2,212meters

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7
Q

What is the maximum effective range of the MK19?

A

Point - 1,500 meters
Area - 2,212 meters
(FM 3-22.27 Nov 2003 / 1-2 / PDF 13)

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8
Q

What are the rates of fire for the MK19?

A

Sustained- 40 rds/min
Rapid- 60 rds/min
Cyclic- 325-375 rds/min
(FM 3-22.27 Nov 2003 / 1-2 / PDF 13)

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9
Q

What is the muzzle velocity of the MK19?

A

798ft per second

FM 3-22.27 Nov 2003 / 1-2 / PDF 13

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10
Q

What are the two most common malfunctions of the MK19?

A

Runaway gun
Sluggish action
(FM 3-22.27 Nov 2003 / C-4 / PDF 142)

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11
Q

When taking immediate action for a “runaway gun” with the MK19, should you ever break the ammo belt?

A

No

FM 3-22.27 Nov 2003 / C-4 / PDF 144

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12
Q

One click in rear site windage equals how many change?

A

1 mil

FM 3-22.27 Nov 2003 / 1-2 / PDF 8

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13
Q

What mounts are available for the MK19?

A 
M3 Tripod
M4 Pedestal
M66 Ring
HMMWV Weapons Platform
M113 APC Commander's cupola
(FM 3-22.27 Nov 2003 / 1-2 / PDF 12)
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14
Q

Describe the sight system for the MK19.

A

The MK19 has a blade-type front sight attached to the top cover assembly and a leaf-type rear sight (with an adjustable
range plate) mounted on a spring dovetail base. The rear sight range plate is incremented in 100-meter intervals from 300 to 1500 meters. Range changes are made using either the slide release or the elevation wheel. The rear sight is also
adjustable for windage
(FM 3-22.27 Nov 2003 / 1-2 / PDF 8)

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15
Q

What is the weight of the MK19 weapon system?

A 
System weight (Gun, Cradle and Tripod with feed throat) = 143 lbs
MK19 with feed throat = 78 lbs
MK64 = 21 lbs
M3 (tripod) = 44 lbs
(FM 3-22.27 Nov 2003 / 1-2 / PDF 12)
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16
Q

What are the approved methods of destruction for the MK19?

A 
Mechanical means
Burning
Gunfire
Demolition
Disposal
(FM 3-22.27 Nov 2003 / 2-9 / PDF 37
17
Q

What FM covers the MK19?

A

FM 3-22.27

18
Q

What is the average recoil force of the MK19?

A

500 lbs

FM 3-22.27 Nov 2003 / 1-2 / PDF 13

19
Q

What is the type of ammunition fired from the MK19?

A 
M430 (HEDP)
M383 (HE)
M918 (TP)
M922 (DUMMY)
(FM 3-22.27 Nov 2003 / 1-2 / PDF 10)
20
Q

What are the 6 steps in the MK19 cycle of operation?

A
  1. Charging
  2. Extract ing (delinking)
  3. Cocking
  4. Firing
  5. Blowback
  6. Automatic Feeding
    (FM 3-22.27 Nov 2003 / 2-1 / PDF 15)
21
Q

What are the proper procedures to clear a MK19?

In a Firing Situation:

A
  1. Move the safety switch to S (SAFE).
  2. Open the top cover assembly. If all the ammunition has NOT been fired, the bolt is to the rear and a round is on
    the bolt face. If the bolt is forward, lock it to the rear
  3. Take the ammunition from the feed tray by reaching beneath the feed tray and pressing the primary and secondary
    positioning pawls. While pressing the position pawls, slide the linked rounds out of the MK 19 through the feed
    throat.
  4. Insert a section of the cleaning rod or bayonet through either side of the receiver rail. Place it on top of the live
    round or cartridge case, as close to the bolt face as possible, and push down. This action forces the round out of
    the MK 19.
  5. Lower and pull both charger handles to the rear.
  6. Inspect the chamber and bolt face to ensure that no live rounds are in the weapon.
  7. Place the safety switch on F (FIRE) (Figure 2-6).
  8. Maintain rearward pressure on the charging handle, press the trigger and ease the bolt forward.
  9. Place the safety switch on S (SAFE).
22
Q

What are the proper procedures to clear a MK19?

In a Non-Firing Situation:

A
  1. Place the safety switch on S (SAFE) (Figure 2-6).
  2. Open the top cover assembly.
  3. Lower one or both charger handles.
  4. Pull the charger handle slightly to the rear.
  5. Allow sufficient space between the face of the bolt and the chamber to see both.
  6. Check for live ammunition.
  7. Ride the bolt forward.
  8. Return the charger handle to its original upright position.
    (FM 3-22.27 Nov 2003 / 2-3 / PDF 18)
23
Q

What are the proper procedures for performing immediate action on the MK19 during peace time and training:

A
  1. The gunner ensures the safety of other personnel and clears the weapon of ammunition by performing the following steps in sequence:
    Clear the area of personnel.
    Pull bolt to the rear. If the bolt does not go to the rear, go to BOLT JAMMED.
    Catch the live round as it is ejected.
    Push the charging handles forward and up.
    Put the gun on S (SAFE) and check for any bore obstructions.
    If bore is clear, move safety switch from the S (SAFE) to the F (FIRE) position, and attempt to fire.
    If nothing happens, put gun on S (SAFE) and wait 10 seconds.
    Pull the bolt to the rear.
    Catch the live round as it is ejected.
    Open the top cover and clear the ammunition.
    Check bore for any obstructions.
  2. Charge the MK 19 in the normal manner and check to see the primary pawls have clicked up behind the cartridge
    in front of the bolt face and that the secondary pawls have clicked up behind the next round before firing. The feed
    pawls should click up within the 1-inch of charging handle travel.
  3. If the primary and secondary pawls do not click up within the last 1-inch of charging travel,follow these
    procedures:
    Turn the MK 19 into unit level maintenance.
    Record ammo lot number, type of ammo, number of rounds fired, serial number of the MK 19 and indicate
    whether ammo is linked with one-piece or two-piece links.
24
Q

What are the proper procedures for performing immediate action on the MK19 during Combat:

A
  1. Press charger handle locks and rotate charger handles down.
  2. Pull charger handles to the rear until the bolt sears.
  3. Push charger handles forward and rotate charger handles up and lock.
  4. Relay and fire.
  5. Turn in live rounds that cycled through the weapon as instructed by current directives.
    (FM 3-22.27 Nov 2003 / C-1 / PDF 139)

ARMY STUDY GUIDE (57 decks)

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