MK 19 Flashcards
1
Q
Identify the Clearing Procedures of the Mark 19 in a firing situation.
A
- Move the safety switch to safe.
- Open the top cover assembly. If the bolt is forward, lock it to the rear.
- 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.
- 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 lost to the bolt face as possible, and push down. This action forces the round out of the MK 19.
- Lower and pull both charger handles to the rear.
- Inspect the chamber and bolt face to ensure that no live rounds are in the weapon.
- Place the safety switch on Fire.
- Maintain reward pressure on the charging handle, press the trigger and ease the bolt forward.
- Place the safety switch on Safe.
2
Q
Identify the Clearing Procedures of the Mark 19 in a non-firing position.
A
- Place the safety switch on Safe
- Open the top cover assembly
- Lower one or both charger handles
- Pull the charger handle slightly to the rear
- Allow sufficient space between the face of the bolt and the chamber to see both
- Check for live ammunition
- Ride the bolt forward
- Return the charger handle to its original upright position
3
Q
How do you load a Mark 19?
A
- Make sure the chamber is empty, the bolt is in the forward position, and the charger handles are in the up position.
- Make sure the safety switch is in the safe position
- Insert the first round: open the top cover and insert through the feed throat into the feeder, link opening first; push or slide the round across the first set of feeder pawls making sure the round is straight and firmly seated against the bolt; index the feed slide assembly to the left and close the top cover
- Charge the weapon: grasp charger handles palms down; press charger handle locks and rotate charger handles down; Pull charger handles sharply to the rear until the bolt sears; Push charger handles forward and rotate them up into the lock position
- Load the first round: Place safety switch to fire; Rotate charger handles down and pull them sharply to the rear until the bolt sears. This pulls the bolt with the loaded round into position for firing; place the safety switch in safe mode; push the chargers forward and rotate the charger handles up into the lock position; leave the safety switch on safe position until ready to fire.
4
Q
How do you unload a Mark 19?
A
- Place the safety switch on safe.
- Charge the weapon.
- Return the charger handles to the forward position and rotate only one charger handle up.
- Remove the live round or spent case from bolt: insert the tip of the cleaning rod through the right hand rail as close to the bolt face as possible; lift up on the cleaning rod to force the live round or case off the bolt face and out the bottom of the gun (catch the live round)
- Remove the linked rounds from the feeder: Open the top cover, check for rounds in the feeder. If present, with one hand reach beneath the feeder, press the primary and secondary positioning pawls at the safe time (place rounds in the ammunition can)
- Place the safety switch in the fire position
- Ride the bolt forward. Hold one charger handle to the rear, press the trigger to release the bolt; ride it forward. Make sure both charging handles are forward and in the up position.
- Place the safety switch to safe
- Index the feed slide assembly to the left
- Close and latch the top cover
5
Q
Perform a functions check on a Mark 19.
A
- Check the functioning on the safety switch.
a. With cover closed, place safety switch on safe
b. pull bolt to the rear, push charger handles to forward position, and rotate handles up
c. press trigger
d. place safety in fire position
e. press trigger.
f. Place safety switch in safe and leave bolt in the forward position - Open top cover assembly and inspect the feed tray assembly and the chamber to ensure the gun is clear
a. open the top cover
b. touch the firing pin
c. inspect bolt face to make sure its not work, dirty, pitted, corroded, or in need of lubrication (LSAT) - Check the feed slide assembly and feeder
a. move the secondary drive lever back and forth
b. Press the feed pawls to check for spring pressure
c. Inspect the link guide for roughness and galling
d. close and latch the top cover - If you find any deficiencies that you cannot correct, the MK 19 is unserviceable. Report deficiencies to supervisor.
6
Q
How can you tell the safe switch is operational?
A
The safe-fire switch should click when moved to safe or fire
7
Q
What parts of the MK19 do you not immerse in sulvent?
A
Rear Assembly, Ogive Assembly, Bolt and Back Plate Assembly
8
Q
What do you inspect for when inspecting the Ogive Plunger?
A
Cracks in the case and a weak spring
9
Q
What do you use to lubricate the gun in 0 degree and below weather?
A
Lubricant Automatic Weapons Arctic (LAW)
10
Q
How long is the MK 19?
A
43.1 inches
11
Q
How much does the MK 19 weigh?
A
Gun- 72.5 lbs; Cradle- 21.0 lbs; Tripod- 44.0 lbs
Total weight - 137.5 lbs
12
Q
What is the muzzle velocity of the MK 19?
A
790 ft.
13
Q
What is the bore diameter of the MK19?
A
40mm
14
Q
What are the maximum ranges of the MK 19?
A
Max range- 2200m; Max effective range- 1600m
15
Q
What are the rates of fire for the MK 19?
A
Cyclic- 325-375 rounds/min
Rapid- 60 rounds/min
Sustained- 40 rounds/min
