Marksmanship fundamentals for the M136 AT4
Maintaining a steady hold involves holding the launcher as steady as possible while sighting and firing. To maintain the proper sight picture and sight alignment until you fire, hold the launcher in a tight, comfortable position so that it becomes a natural extension of your body. Keep your elbows close to your body to help balance the weapon and prevent you from jerking or flinching when you fire. With your left hand, grasp the carrying sling where it attaches to the launcher near the muzzle. With your right hand on the trigger mechanism, pull the shoulder stop into your right shoulder pocket.
Steady Hold Position
Aiming procedures include placing the eye correctly, obtaining a sight picture, and aligning the sight. Combining these procedures is critical to correctly aiming light antiarmor weapons.
Estimate the range before sighting the weapon. Place your firing eye between 2 1/2 to 3 inches from the rear sight. This distance is necessary for correct sight alignment and to prevent injury to the firer from the weapon's recoil.
WARNING: When firing the M136 AT4, do not place your eye closer than 2 1/2 inches from the rear sight. The M136 AT4's recoil could cause the rear sight to injure your firing eye.
Align the sights correctly with the target. Position the rear sight so that the white semicircle of the front sight is a hazy line around the bottom half of the rear sight opening. Position the front sight posts on the target. Align the sight by moving your head forward or backward.
Sight Alignment for the M136 AT4
Position the front sight on the target.
Stationary targets include fixed positions and fortifications as well as vehicles moving directly toward or away from the firer. Adjust the rear sight for the correct range and place the center sight post in the center of the target.
Sight Picture, Stationary Targets
Slow Moving Vehicles:
Slow-moving vehicles are those with an estimated speed of 10 miles per hour or less or those moving in an oblique direction. Place the center sight post on the front or leading edge of the vehicle.
Sight Picture, Slow Moving Vehicles
Fast Moving Vehicles:
Fast-moving vehicles are those estimated to be moving faster than 10 miles per hour. Place either the left or right lead post on the center of the target. For example, if the target is moving from left to right, place the left lead post on the target's center of mass, and vice versa.
Sight Picture, Fast Moving Targets
Breath control is as important when firing the M136 AT4 as it is when firing an individual weapon. Improper breath control while firing can cause a miss. To control breathing, the firer breathes deeply a couple of times, takes one last deep breath, exhales partly, holds his breath, sights, and then fires.
To fire the M136 AT4, the firer must apply firm and steady forward pressure to the trigger with the thumb of the firing hand. Soldiers can practice trigger manipulation and control techniques on an expended launcher or FHT.
INTEGRATED ACT OF SHOOTING:
Correct sight alignment is critical, as sight alignment errors increase as the range to the target increases. Maintaining the correct relationship between the rear and front sights is as important as placing the aiming point. The steps for doing this should become automatic. No matter how quickly they are done, these steps are always distinct because the human eye can only focus at one distance and on one point at a time. The firer focuses on the front sight to obtain the correct sight alignment, and then places the aiming point to complete the sight picture. He shifts or adjusts the position of the launcher as necessary. The entire time he is pressing the trigger, the firer maintains the sight picture.