Task 1: Load a M2 .50 cal Heavy Machine Gun

Task 2: Perform Immediate Action on a M2 .50 cal Heavy Machine Gun

Task 3: Unload and Clear a M2 .50 cal Heavy Machine Gun

TEST CONDITIONS: During daylight, given an assembled and cleared M2 .50 cal Heavy Machine Gun with headspace and timing correctly set; a belt of linked M2 .50 cal HMG blank ammunition with a dummy round inserted into the belt; and a requirement to expend all rounds in the belt.

TEST STANDARDS: Load and begin firing the machine gun within 10 seconds; apply immediate action within 10 seconds when a stoppage occurs; and unload and clear the machine gun within 10 seconds when all blank rounds have been fired.

SOLIDER'S MANUAL CROSSWALK: This task is based on task number 071-022-0003 in STP 7-11BCHM14-SM-TG.

EQUIPMENT REQUIRED FOR POINT: An assembled M2 .50 cal Heavy Machine Gun (tripod-mounted), with headspace and timing set; a five-round belt of blank .50 cal Heavy Machine Gun ammunition with a dummy round inserted in the middle position of the belt (two blank rounds on either side) and a pencil, ballpoint pen, field table, stopwatch, clipboard, earplugs, and FB Form 20-34-R.

SITE SETUP: Ensure the site provides for the safe firing of caliber .50 blank ammunition and does not unduly interfere with other test stations. The selected site should be relatively level, and the tripod-mounted gun should be well emplaced to prevent movement during the test.

"Let me have your attention. At this point, you are required to load a M2 caliber .50 Heavy Machine Gun, perform immediate action on a M2 caliber .50 Heavy Machine Gun, and unload and clear a M2 caliber .50 Heavy Machine Gun. You will load and fire the M2 caliber .50 Heavy Machine Gun on automatic within 10 seconds. When a stoppage occurs, you must apply immediate action within 10 seconds and continue with the test. You must unload and clear the M2 caliber .50 Heavy Machine Gun within 10 seconds. You will be given an assembled and cleared M2 caliber .50 Heavy Machine Gun with headspace and timing correctly set, a belt of linked, caliber .50 machine gun ammunition, and a requirement to expend all rounds in the belt. Do you understand what you must do?"

If there are any questions, repeat the instructions but do not elaborate on what you have read.

"Begin."

Allow the candidate to continue for the full 30 seconds.

Allow the candidate to proceed from one phase of this test to the next without stopping after each requirement.

"Stop."

TASK SUMMARY

Station Q

Point Q-1-A - MK 19 40mm Grenade Machine Gun

NOTE: "Blank" rounds do not exist for the Mk 19 40mm GMG. The first dummy round fired will be the malfunctioning round. The MK 19 uses belted 40-mm cartridges much more powerful than the M16/M4 Rifle/Carbine-M203 40mm Grenade Launcher's family of rounds. DO NOT INTERCHANGE AMMUNITION WITH THE TWO WEAPONS.

(1) The HEDP (high-explosive, dual-purpose) M430 cartridge, joined with M16A2 links, is the standard round for the MK 19. The impact-type round penetrates 2 inches of steel armor at 0-degree obliquity and inflicts personnel casualties in the target area. This round is packed in an M548 ammunition container (48 rounds, linked, in each container). It is olive drab with a yellow ogive and yellow markings. It has a PIBD, M549 fuze, and Comp B filler. It arms between 18 to 30 meters and has a casualty radius of 15 meters.

(2) The two HE (high-explosive) cartridges inflict personnel casualties in the target area with ground burst effects. Their fillers and body materials differ although performance traits are the same. Neither has the armor penetrating ability of the HEDP M430 round. They are both in wooden boxes, 50 rounds to a box.

(a) HE M383 or M383E1. These rounds are linked with M16A2 links, DODAC B571.

(b) HE M384. These rounds are linked with M16A2 links, DODAC B470.

(3) The M385 practice rounds are joined with either M16A1 OR M16A2 links, B490. They are packed the same as the HE rounds, in wooden boxes, 50 rounds to a box.

(4) The M922 dummy cartridges are joined with M16A2 links. Each MK 19 is allowed one 10-round belt (DODAC B472), which is packed in an M2A1 metal box. These inert cartridges are used to check weapon function and for crew training, like EIB testing.

TASK 1: Load a MK 19 40mm Grenade Machine Gun

TASK 2: Correct a malfunction on a MK19 40mm Grenade Machine Gun

TASK 3: Unload a MK 19 40mm Grenade Machine Gun

TEST CONDITIONS: During daylight, the candidate is given an assembled and cleared MK 19 40-mm grenade machine gun with a 10 round belt of linked MK 19 40-mm M922 dummy grenade ammunition.

TEST STANDARDS: The candidate must load and begin firing the machine gun within one minute; apply immediate action within 10 seconds when a stoppage occurs; and unload and clear the machine gun within one minute after the scorer states all rounds have been fired.

SOLIDER'S MANUAL CROSSWALK: This task is based on tasks described in FM 23-27 MK-19 Mod O 40mm Grenade Machine Gun and has been modified for the EIB test with the addition of the time standard and the modifications needed for using dummy ammunition.

EQUIPMENT REQUIRED FOR POINT: An assembled MK 19 40-mm grenade machine gun (tripod-mounted) a 5-round belt of dummy MK 19 40-mm grenade machine gun ammunition, a pencil/pen, field table, stopwatch, clipboard, and FB Form 20-34-R.

SITE SETUP: Ensure the site provides personnel for the reassembly of MK 19 40-mm grenade dummy ammunition and links. The selected site should be relatively level, and the tripod-mounted gun should be well emplaced to prevent movement of the weapon during the test.

INSTRUCTIONS TO CANDIDATES

"Let me have your attention. At this point, you are required to load a MK 19 40-mm Grenade Machine Gun, perform Imediate Action on a MK 19 40-mm Grenade Machine Gun, and unload and clear a MK 19 40-mm Grenade Machine Gun. You will load and fire the MK 19 40-mm Grenade Machine Gun within one minute. When a stoppage occurs, you must apply immediate action within 10 seconds and continue with the test. I will then state that all rounds have been fired. You must unload and clear the MK 19 40-mm Grenade Machine Gun within 1 minute. You will be given an assembled and cleared MK 19 40-mm Grenade Machine Gun, a belt of linked dummy 40-mm ammunition, and a requirement to simulate expending all rounds in the belt. Do you understand what you must do?"

(If there are any questions, repeat the instructions but do not elaborate on what you have read.)

"Begin."

Allow the candidate to continue for one full minute to load the MK-19.

a. Placed the weapon on SAFE
b. Rode the bolt forward.
c. Returned both charger assemblies to the original upright position
d. Opened the top cover
e. Slid the rounds, female link first, through the feed throat
f. Inserted the first round into the feeder and across the first pawl
g. Moved the feed slide assembly to the left
h. Closed the top cover.
i. Charged the weapon
j. Locked both charger handles forward
k. Moved the safety to FIRE.
l. Pressed the trigger (bolt went forward).
m. Moved the safety to SAFE.
n. Charged the weapon (first round on bolt face).
o. Locked both charger handles forward

After he attempts to fire, he applies Immediate Action within 10 seconds.

a. Charged the weapon
b. Pressed the trigger

You state: "All rounds have been expended"

The candidate has one minute to unload/clear the weapon within 1 minute.

a. Placed the gun on SAFE
b. Opened the top cover
c. Remove dummy belt of 40 mm ammoTake the ammunition from the feed tray by reaching beneath the feed tray and pressing the primary and secondary positioning pawls. At the same time, slide the linked dummy rounds out of the MK 19 through the feed throat
d. Pulled one charging handle until dummy round is ejected
e. Lowered both charging handles.
f. Pulled back on both charging handles slightly, allowing enough space between the face of the bolt and the chamber to allow both to be seen.
g. Inspected the bolt face, the chamber, and the feed area for ammunition.
h. Rode the bolt forward.
i. Returned both charging handles to the original upright position. j. Moved the feed slide assembly to the left
k. Closed the cover.

"Stop."

TEST CONDITIONS: During daylight, given an assembled and cleared M2 caliber .50 Heavy Machine Gun.

TEST STANDARDS: Correctly set the headspace and timing on the M2 caliber .50 Heavy Machine Gun within 8 minutes.

SOLDIER'S MANUAL CROSSWALK: This task does not differ from task number 071-313-3455 in STP 7-11BCHM14-SM-TG.

EQUIPMENT REQUIRED FOR POINT: An assembled M2 caliber .50 Heavy Machine Gun (tripod-mounted) with headspace and timing gauge, stopwatch, clipboard, and FB Form 20-35-R.

SITE SETUP: Ensure the machine gun is tripod-mounted and well emplaced to prevent movement during the test.

"Let me have your attention. At this point, you are required to set headspace and timing on a M2 caliber .50 Heavy Machine Gun within 8 minutes. The necessary tools and equipment will be provided. You must perform this task without injuring yourself or damaging the equipment. Do you understand what you must do?"

If there are any questions, repeat the instructions but do not elaborate on what you have read.

"Begin."

Allow the candidate to proceed for 8 minutes.

"Stop."