Heckler&Koch MR556A1 - Manual (Page 12)

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Fig. 30 – Inserting Magazine into the Rifle
6. Depress the upper portion (paddle) of the bolt catch. The bolt should go forward,
stripping the top cartridge from the magazine and feeding it into the chamber (Fig.
31).
Fig. 31 – Depressing Bolt Catch to Chamber a Cartridge
7. Tap the forward assist to ensure the bolt is fully forward and locked (Fig. 32).
Fig. 32 – Tap Forward Assist
WARNING: Always assume every weapon is loaded until it is verified through
visual and physical inspection that it is not. Refer to this work package for clearing
procedures.
Confirm the weapon is clear and on SAFE before performing the following procedures.
Failure to follow these warnings may cause injury or death to personnel.
CAUTION: Never ride the charging handle forward. Allow it to move forward under
its own power.
NOTE: Close the ejection port cover if the weapon is not to be immediately fired.
FIRING THE RIFLE
1. Place the selector lever on SEMI-AUTOMATIC.
2. Estimate range to target and adjust the rear sight by rotating the adjuster so that the
desired range setting on the adjuster is aligned with the range index mark.
3. Sight in on the target and acquire proper sight picture and sight alignment.
4. Employing proper breathing techniques, fire the M556A1 by slowly squeezing
rearward on the trigger until the hammer releases from the sear.
WARNING: Before firing the MR556A1, ensure that:
1. The bore is clear of obstructions.
2. The firearm is pointed only at your intended target.
3. You are sure of your backstop and the impact area beyond.
4. Your hands and fingers are away from the muzzle.
RELOADING THE MR556A1
The magazine in the weapon is empty. The bolt is held to the rear by the bolt catch. Same
procedure as above, except the bolt is already locked to the rear and you must first set the
selector to “SAFE”.
1. Set the selector lever to “SAFE”.
2. Depress the magazine release button with the right index finger or thumb. Remove
the empty magazine from the magazine well. Store the empty magazine in a magazine
pouch.
3. Insert a loaded magazine into the magazine well until the magazine catch engages the
magazine (Fig. 30).
4. Tap upward on the magazine to ensure it is properly seated and tug slightly on the
magazine downwards to ensure the magazine is properly engaged by the magazine
catch. Insert a loaded magazine into the magazine well until the magazine catch
engage
5. Push the bolt catch in to release the bolt and to chamber a round.
6. The weapon is now loaded and set on “SAFE.”
UNLOADING THE MR556A1
Use the clearing procedures found on page 5 to unload (and clear) the rifle.