Magazine Reassembly

IF THE SPRING COMES LOOSE FROM THE FOLLOWER, TURN IN THE PIECES. DON'T TRY TO FIX IT YOURSELF.

CLEAN AND LUBE

Wipe dirt from tube, spring, and follower; then lightly lube spring.

Insert follower and jiggle spring to install.

Slide the base under all four tabs until base catches.

MAKE SURE PRINTING IS ON THE OUTSIDE.

THIS PAGE INTENTIONALLY LEFT BLANK

BORE

BORE

2 Retract bolt to ensure free movement between bolt carrier and gas tube.

CHAMBER

CHAMBER

1 Remove excessive oil.

2 Retract bolt to ensure free movement between bolt carrier and gas tube.

3 Perform functional check to ensure selector lever works properly. Next Pa9e-

* Preventive Maintenance Checks and Services

SEMI O

SELECTOR LEVER ON: SAFE

Pull charging handle to rear and release. Place on SAFE. Pull trigger. Hammer should not fall.

SEMI

Place selector lever in SEMI. Pull trigger and hold to rear. Hammer should fall. Pull charging handle to rear and release. Release trigger and pull again. Hammer should fall.

BURST

Place selector lever on BURST. Pull charging handle to rear and release. Pull trigger and hold to rear. Hammer should fall. Pull charging handle to rear three times and release. Release trigger and pull again. Hammer should fall.

SHORT RANGE (0-200 METERS)

SHORT RANGE - This "larger" aperture is used for 0 - 200 meters range. As shown above, the sight is set for 0 - 200 meters. This larger aperture is only used when the rear sight is all the way down. In other words, the 300-meter mark is aligned with the mark on the left side of the receiver.

NORMAL RANGE (300-800 METERS)

NORMAL RANGE - The aperture is unmarked and used for most firing situations. It is used in conjunction with the elevation knob for 300, 400, 500, 600, 700, and 800 meter targets.

When battlesights are on your rifle:

a. The front sight post and rear sight windage knob are adjusted so you can hit your point of aim at 300 meters.

b. The unmarked aperture must be in the up position.

c. The 300-meter mark is aligned with the mark on the left side of the receiver.

a. During zeroing procedures, only the front sight post and windage knob are adjusted to move the strike of the bullet on the target.

b. If you are zeroing on a 25-meter range, the rear sight elevation knob is adjusted to the 300-meter mark plus one "click" up.

c. Detailed zeroing procedures are on the following pages 52-55.

FRONT SIGHT. To adjust elevation, depress detent and rotate post. To raise strike of bullet, rotate post in the direction of arrow marked UP. Reverse the direction of rotation to lower strike of bullet. Each graduation (notch) moves the point of impact of bullet as indicated.

IMPACT

0.9 cm (3/8 in.) 3.5 cm (1 3/8 in.) 7.0 cm (2 3/4 in.)

DISTANCE

25 meters 100 meters 200 meters

BATTLESIGHT ZEROING ADJUSTMENTS (CONT)

*All the above values have been rounded off.

To remember your correct battlesight zero windage, note location of windage scale and windage knob pointer (heavy mark on outside of knob).

Do not center rear sight aperture for inspections. Keep your correct battlesight zero windage on the rifle at all times.

*All the above values have been rounded off.

To remember your correct battlesight zero windage, note location of windage scale and windage knob pointer (heavy mark on outside of knob).

Do not center rear sight aperture for inspections. Keep your correct battlesight zero windage on the rifle at all times.

USE THE POINT OF AIM - POINT OF IMPACT TECHNIOUE

(BY FOLLOWING THE STEPS BELOW AND ESTABLISHING A ZERO AT 25 METERS, YOUR

M16A2 RIFLE SIGHTS WILL BE SET WITH A 300-METER BATTLESIGHT.)

1 DO NOT MOVE FRONT SIGHT POST AT THIS TIME. IT WAS SET AT THE FACTORY OR BY A PREVIOUS SHOOTER AND SHOULD BE VERY CLOSE TO YOUR ZERO.

2 CENTER THE REAR SIGHT APERTURE BY TURNING THE WINDAGE KNOB LEFT OR RIGHT. (THIS IS CALLED MECHANICAL ZERO WINDAGE.)

3 THE UNMARKED APERTURE SHOULD BE UP.

4 ROTATE ELEVATION KNOB IN THE DOWN DIRECTION (COUNTER-CLOCKWISE). THE ELEVATION KNOB SHOULD STOP THREE CLICKS PAST THE 300-METER MARK. THE REAR SIGHT SHOULD BE ALL THE WAY DOWN ON THE LAST WHOLE "CLICK" BEFORE IT BOTTOMS OUT. THIS IS CALLED MECHANICAL ZERO ELEVATION FOR THE REAR SIGHT. IF YOUR RANGE SCALE WILL NOT LINE UP IN THE ABOVE MANNER, AN ARMORER WILL BE REQUIRED TO ADJUST THE RANGE SCALE FOR YOU.

5 NOW ROTATE THE ELEVATION KNOB "UP" ONE CLICK PAST THE 300-METER MARK. FROM THIS POINT ON, THE REAR SIGHT ELEVATION KNOB SHOULD NOT BE MOVED. ANY CHANGES IN ELEVATION REQUIRED IN THE FOLLOWING ZEROING STEPS ARE MADE TO THE FRONT SIGHT POST ONLY.

6 CAREFULLY AIM AND FIRE AT THE CENTER OF THE TARGET BULL'S-EYE. TAKE YOUR TIME AND BE SURE TO USE THE SIGHT PICTURE ILLUSTRATED.

7 IF YOUR SHOT GROUP IS NOT IN THE CENTER OF THE BULLS-EYE, USE THE SQUARES ON THE TARGET SHEET TO CALCULATE THE REQUIRED "CLICKS" NECESSARY TO MOVE YOUR NEXT SHOT GROUP INTO THE BULLS-EYE. (REMEMBER THAT ANY CHANGES IN ELEVATION ARE MADE BY MOVING THE FRONT SIGHT POST.) THE SQUARES ARE NUMBERED AROUND THE EDGES OF THE TARGET TO EQUAL THE NUMBER OF CLICKS REQUIRED TO MOVE THE SHOT GROUP TO THE BULL'S-EYE.

8 IN ORDER TO RAISE YOUR NEXT SHOT GROUP, ROTATE THE FRONT SIGHT POST CLOCKWISE. (ONE CLICK WILL MOVE THE STRIKE OF THE BULLET ONE VERTICAL SQUARE ON THE TARGET SHEET.)

IN ORDER TO LOWER YOUR NEXT SHOT GROUP, ROTATE THE FRONT SIGHT POST COUNTERCLOCKWISE (ONE CLICK, AS ABOVE, EQUALS ONE SQUARE).

CHANGES IN WINDAGE ARE MADE WITH THE WINDAGE KNOB. (THREE CLICKS WILL MOVE THE STRIKE OF THE BULLET ONE HORIZONTAL SQUARE ON THE TARGET SHEET.)

IN ORDER TO MOVE THE SHOT GROUP TO THE LEFT, TURN THE WINDAGE KNOB COUNTERCLOCKWISE.

IN ORDER TO MOVE THE SHOT GROUP TO THE RIGHT, TURN THE WINDAGE KNOB CLOCKWISE.

9 CAREFULLY AIM AND FIRE ANOTHER GROUP AT THE CENTER OF THE TARGET BULLS-EYE.

10 REPEAT STEPS 7 THROUGH 9, IF REQUIRED.

11 IF YOUR GROUP IS ON TARGET, YOUR SIGHT IS NOW "CALIBRATED." TO PLACE YOUR ACTUAL 300-METER ZERO ON THE RIFLE, YOU MUST ROTATE THE ELEVATION KNOB ONE CLICK "DOWN." (THE RANGE SCALE'S 300-METER MARK SHOULD NOW BE ALIGNED WITH THE MARK ON THE RECEIVER.)

1 Establish your zero (see page 47). The elevation dial is now set starting at 300 meters and continuing in 100 meter increments up to 800 meters.

SIGHT SET FOR 500 METERS

2 Rotate the dial until the number (4, 5, 6, 7, or 8) you want is aligned with the mark on the left side of the receiver.

SIGHT SET FOR 800 METERS

SIGHT SET FOR 800 METERS

MARK ON LEFT SIDE OF RECEIVER

SIGHT ALL THE WAY UP

MARK ON LEFT SIDE OF RECEIVER

SIGHT ALL THE WAY UP

Obtain a good sight picture and good sight alignment with the unmarked aperture and the front sight post.

4 Squeeze the trigger and fire.

NOTE

There are clicks between the numbers as you turn the elevation knob. Use the clicks if you need more elevation past a certain number to hit your target.

The normal rear sight aperture (unmarked) flips forward to expose a larger aperture marked "0-2." Use the 0-2 aperture only when the 3 is aligned with the mark on the left side of the receiver and the sight is rotated down. You will automatically get a zero of 200 meters. Use the 0-2 aperture when shooting at night or at close range, e.g., in a city or in dense jungle.

NOTE

0-2 APERTURE - USED ONLY WHEN KNOB IS SET FOR 300 METERS

SIGHT DOWN

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