How to maintain an m249 saw

The M249 SAW can be disassembled and assembled without special tools or equipment except for the handguard assembly, the gas regulator, and the gas regulator collar. Detailed disassembly requires special tools.

As each part is removed in disassembly, it should be placed on a clean, flat surface such as a table, shelter half, or disassembly mat. This makes it easy to keep track of parts, and it aids in the assembly, since the parts are assembled in reverse order from disassembly.

Disassembly of the SAW beyond that described in this manual must be done by ordnance personnel a. TYPES. There are two types of disassembly and assembly:

(1) General disassembly and assembly pertain to removing and replacing the eight major groups.

(2) Detailed disassembly and assembly pertain to removing and replacing the parts of those major groups.

(1) Operating rod group (5) Barrel group

(2) Buttatock and shoulder assembly group (6) Gas cylinder group

(3) Trigger group (7) Bipod group

(4) Handguard group (8) Receiver group

How to maintain an m249 saw

CLEARING. Clearing is always the first step upon receiving a SAW or when preparing it for disassembly. To clear the SAW:

(1) Cock the weapon.

(2) Put the safety on SAFE and return the cocking handle to its forward position.

(3) If the SAW is belt-fed, raise the cover, inspect the tray, and remove links or ammunition.

(4) If the SAW is magazine-fed, push down on the magazine release tab and remove the magazine. Then raise the cover.

(5) Raise the tray and inspect the chamber to ensure that no rounds are present.

(6) Close the cover, place the safety on FIRE, pull the cocking handle to the rear, and pull the trigger while manually easing the bolt forward.

(7) Raise the cover. (If not disassembling the weapon, keep the cover down.)

THE BOLT MUST BE EASED FORWARD TO PREVENT DAMAGE TO THE FEED TRAY ASSEMBLY AND OPERATING ROD GROUP.

REMOVING THE OPERATING ROD GROUP. The operating rod group consists of the spring guide rod, operating rod spring, slide assembly, piston assembly, and bolt assembly.

(1) To remove the operating rod, pull to the left the upper retaining pin at • the rear of the receiver. Let the buttstock pivot downward so that the rear opening on the receiver is completely free.

(2) Hold the weapon with one hand on the buttstock assembly and push in and upward on the rear of the operating rod assembly with the thumb of other hand. This releases the operating rod assembly from the positioning grooves inside the receiver.

(3) Pull the operating rod and spring from the receiver group and separate the two parts.

(4) With the left hand, grab the buttstock assembly to stabilize the weapon. With the right hand, pull the cocking handle to the rear. Return the cocking handle to the forward position. Place a finger on the face of the bolt and push until the finger makes contact with the bridge at the end of the receiver. This leaves the piston, slide, and bolt assemblies exposed.

(5) Grasp the slide assembly and slide the moving parts out the rear of the receiver.

The first step in maintenance is to clear the weapon. This applies in all situations, not just after firing. The gunner must always assume the M249 machine gun is loaded. To clear the M249, the gunner performs the following procedures:

  1. Moves the safety to the fire “F” position by pushing it to the left until the red ring is visible.
  2. With his right hand, palm up, pulls the cocking handle to the rear, locking the bolt in place.
  3. While holding the resistance on the cocking handle, moves the safety to the SAFE position by pushing it to the right until the red ring is not visible. (The weapon cannot be placed on safe unless the bolt is locked to the rear.)
  4. Returns and locks the cocking handle in the forward position.

DANGERWHEN OPENING THE FEED COVER ON A HOT GUN, MAKE SURE THE WEAPON IS ON THE GROUND AWAY FROM YOUR FACE. WITH THE WEAPON ON YOUR SHOULDER, POSSIBLE DEATH OR INJURY COULD OCCUR IF A ROUND GOES OFF WHEN THE COVER IS RAISED.

  • Raises the cover and feed mechanism assembly, and conducts the five-point safety check for brass, links, or ammunition:
    1. Checks the feed pawl assembly under the feed cover.
    2. Checks the feed tray assembly.
    3. Lifts the feed tray assembly and inspects the chamber.
    4. Checks the space between the bolt assembly and the chamber.
    5. Inserts two fingers of his left hand in the magazine well to extract any ammunition or brass.
  • Closes the cover and feed mechanism assembly and moves the safety to the “F” position. With his right hand, palm up, returns the cocking handle to the rear position. Presses the trigger and at the same time eases the bolt forward by manually riding the cocking handle forward.

    CAUTIONThe cocking handle must be manually returned to the forward and locked position each time the bolt is manually pulled to the rear.

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    How to Load a M249 Machine Gun. The M249 Squad Attack Weapon (SAW) is a versatile and powerful machine gun, and the base of an infantry fire team’s fire support. With a cyclic-fire rate of 800 rounds-per-minute the SAW can throw a lot of lead downrange at a time. The ability to reload the weapon in a quick and safe manner is an integral part of any SAW gunner’s job, as explained in the following steps.

    Pull the cocking handle to the rear, with your palm facing up. Keep pulling until you hear a click. This means the bolt has locked to the rear. Slide the cocking handle back to the front until it locks in place.

    Put the weapon on safe by pushing the safety button, located above the trigger, from left to right. The red line will not be visible when the weapon is on safe. The SAW can only be placed on “SAFE” when the bolt is locked to the rear.

    Squeeze the feed-tray cover latches, located by the rear-sight posts. Lift the feed-tray cover and clear the feed-tray of any debris or used links. Check that the chamber area and breech are clear of debris by lifting the feed tray and checking beneath it.

    Attach the SAW magazine to the underside of the receiver by lining up the magazine with the dovetails on the weapon and pushing it in until it clicks. Pull out on the magazine to make sure it holds.

    Pull out about three or four inches of linked ammunition from the magazine. Place this strip of ammo on the feed tray with the first round against the cartridge stop. Hold the belt in place with your finger on the feeder pawls.

    Close the feed tray cover firmly. Make sure your finger isn’t in the way and slam the cover down pretty hard to make sure it locks in place.

    Items you will need

    Belt-linked ammunition (5.56mm ball)

    To aircraft load your SAW (to prepare it for an airborne or air assault mission), begin by skipping steps one and two. After you have your weapon loaded and the bolt forward, pull the charging handle halfway back. Place the weapon on safe and ride the bolt forward very gently. This is called half-cocking. In an emergency, you can insert a magazine from an M16 or M4 into the magazine well below the feeder tray.

    Warnings

    Half-cocking is hard on a weapon. Do it only when it is mission essential. SAWs tend to jam when using M16 or M4 magazines. Never point a gun, loaded or not, at another person.

    This article was written by a professional writer, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. To submit your questions or ideas, or to simply learn more, see our about us page: link below.

    Available for law enforcement and military.

    How to maintain an m249 saw

    The FN® M249 SAW (also known as the FN MINIMI®) has been a mainstay throughout the U.S. military since 1986 and is currently in service in more than 30 countries. The M249 SAW is designed to be used on the front lines where it really matters, providing crucial support at the infantry squad/fire team level by providing highly accurate fire plus the maneuverability to take the objective. The ergonomically shaped polymer buttstock contains a hydraulic buffer that allows SAW gunners to maintain a high rate of fire with accuracy and effect.

    *Product follows USA specifications
    *Military products available to U.S. sales only

    Related Products

    How to maintain an m249 saw

    How to maintain an m249 saw

    • Caliber: 5.56x45mm
    • Operation: Open-bolt
    • Weight: 17 lb.
    • Barrel Length: 20.5”
    • Overall Length: 40.75”
    • Overall Height: 9.5”
    • Rate of Fire: 775 RPM
    • Effective Range: 800m, point target
    • Maximum Range: 3600m, maximum range
    • Twist Rate: 1:7″ RH
    • Trigger Pull: 7.9 – 15.7 lb.
    • Color: Matte black non-reflective finish

    Formed steel frame with claw extractor design

    Fixed, pivoting ejector plus side ejection of cases

    Top cover integrated MIL-STD-1913 mounting rail for sighting systems

    Cold hammer-forged steel

    Hard chrome-plated bore and chamber

    Highly ergonomic polymer buttstock assembly with hydraulic recoil buffer system and non-slip buttplate

    Curved trigger for improved finger position and control in rapid fire

    Standard disintegrating link belt-fed

    Under-mounted polymer ammunition container helps keep ammunition cleaner for reduced wear and added reliability

    The first step in maintenance is to clear the weapon. This applies in all situations, not just after firing. The gunner must always assume the M249 machine gun is loaded. To clear the M249, the gunner performs the following procedures:

    1. Moves the safety to the fire “F” position by pushing it to the left until the red ring is visible.
    2. With his right hand, palm up, pulls the cocking handle to the rear, locking the bolt in place.
    3. While holding the resistance on the cocking handle, moves the safety to the SAFE position by pushing it to the right until the red ring is not visible. (The weapon cannot be placed on safe unless the bolt is locked to the rear.)
    4. Returns and locks the cocking handle in the forward position.

    DANGERWHEN OPENING THE FEED COVER ON A HOT GUN, MAKE SURE THE WEAPON IS ON THE GROUND AWAY FROM YOUR FACE. WITH THE WEAPON ON YOUR SHOULDER, POSSIBLE DEATH OR INJURY COULD OCCUR IF A ROUND GOES OFF WHEN THE COVER IS RAISED.

  • Raises the cover and feed mechanism assembly, and conducts the five-point safety check for brass, links, or ammunition:
    1. Checks the feed pawl assembly under the feed cover.
    2. Checks the feed tray assembly.
    3. Lifts the feed tray assembly and inspects the chamber.
    4. Checks the space between the bolt assembly and the chamber.
    5. Inserts two fingers of his left hand in the magazine well to extract any ammunition or brass.
  • Closes the cover and feed mechanism assembly and moves the safety to the “F” position. With his right hand, palm up, returns the cocking handle to the rear position. Presses the trigger and at the same time eases the bolt forward by manually riding the cocking handle forward.

    CAUTIONThe cocking handle must be manually returned to the forward and locked position each time the bolt is manually pulled to the rear.

    The M249 SAW can be disassembled and assembled without special tools or equipment except for the handguard assembly, the gas regulator, and the gas regulator collar. Detailed disassembly requires special tools.

    As each part is removed in disassembly, it should be placed on a clean, flat surface such as a table, shelter half, or disassembly mat. This makes it easy to keep track of parts, and it aids in the assembly, since the parts are assembled in reverse order from disassembly.

    Disassembly of the SAW beyond that described in this manual must be done by ordnance personnel a. TYPES. There are two types of disassembly and assembly:

    (1) General disassembly and assembly pertain to removing and replacing the eight major groups.

    (2) Detailed disassembly and assembly pertain to removing and replacing the parts of those major groups.

    (1) Operating rod group (5) Barrel group

    (2) Buttatock and shoulder assembly group (6) Gas cylinder group

    (3) Trigger group (7) Bipod group

    (4) Handguard group (8) Receiver group

    How to maintain an m249 saw

    CLEARING. Clearing is always the first step upon receiving a SAW or when preparing it for disassembly. To clear the SAW:

    (1) Cock the weapon.

    (2) Put the safety on SAFE and return the cocking handle to its forward position.

    (3) If the SAW is belt-fed, raise the cover, inspect the tray, and remove links or ammunition.

    (4) If the SAW is magazine-fed, push down on the magazine release tab and remove the magazine. Then raise the cover.

    (5) Raise the tray and inspect the chamber to ensure that no rounds are present.

    (6) Close the cover, place the safety on FIRE, pull the cocking handle to the rear, and pull the trigger while manually easing the bolt forward.

    (7) Raise the cover. (If not disassembling the weapon, keep the cover down.)

    THE BOLT MUST BE EASED FORWARD TO PREVENT DAMAGE TO THE FEED TRAY ASSEMBLY AND OPERATING ROD GROUP.

    REMOVING THE OPERATING ROD GROUP. The operating rod group consists of the spring guide rod, operating rod spring, slide assembly, piston assembly, and bolt assembly.

    (1) To remove the operating rod, pull to the left the upper retaining pin at • the rear of the receiver. Let the buttstock pivot downward so that the rear opening on the receiver is completely free.

    (2) Hold the weapon with one hand on the buttstock assembly and push in and upward on the rear of the operating rod assembly with the thumb of other hand. This releases the operating rod assembly from the positioning grooves inside the receiver.

    (3) Pull the operating rod and spring from the receiver group and separate the two parts.

    (4) With the left hand, grab the buttstock assembly to stabilize the weapon. With the right hand, pull the cocking handle to the rear. Return the cocking handle to the forward position. Place a finger on the face of the bolt and push until the finger makes contact with the bridge at the end of the receiver. This leaves the piston, slide, and bolt assemblies exposed.

    (5) Grasp the slide assembly and slide the moving parts out the rear of the receiver.

    Available for law enforcement and military.

    How to maintain an m249 saw

    The FN® M249 SAW (also known as the FN MINIMI®) has been a mainstay throughout the U.S. military since 1986 and is currently in service in more than 30 countries. The M249 SAW is designed to be used on the front lines where it really matters, providing crucial support at the infantry squad/fire team level by providing highly accurate fire plus the maneuverability to take the objective. The ergonomically shaped polymer buttstock contains a hydraulic buffer that allows SAW gunners to maintain a high rate of fire with accuracy and effect.

    *Product follows USA specifications
    *Military products available to U.S. sales only

    Related Products

    How to maintain an m249 saw

    How to maintain an m249 saw

    • Caliber: 5.56x45mm
    • Operation: Open-bolt
    • Weight: 17 lb.
    • Barrel Length: 20.5”
    • Overall Length: 40.75”
    • Overall Height: 9.5”
    • Rate of Fire: 775 RPM
    • Effective Range: 800m, point target
    • Maximum Range: 3600m, maximum range
    • Twist Rate: 1:7″ RH
    • Trigger Pull: 7.9 – 15.7 lb.
    • Color: Matte black non-reflective finish

    Formed steel frame with claw extractor design

    Fixed, pivoting ejector plus side ejection of cases

    Top cover integrated MIL-STD-1913 mounting rail for sighting systems

    Cold hammer-forged steel

    Hard chrome-plated bore and chamber

    Highly ergonomic polymer buttstock assembly with hydraulic recoil buffer system and non-slip buttplate

    Curved trigger for improved finger position and control in rapid fire

    Standard disintegrating link belt-fed

    Under-mounted polymer ammunition container helps keep ammunition cleaner for reduced wear and added reliability

    Available for commercial and law enforcement.

    Buy Now

    How to maintain an m249 saw How to maintain an m249 saw How to maintain an m249 saw

    How to maintain an m249 saw

    How to maintain an m249 saw How to maintain an m249 saw How to maintain an m249 saw How to maintain an m249 saw How to maintain an m249 saw How to maintain an m249 saw How to maintain an m249 saw How to maintain an m249 saw How to maintain an m249 saw How to maintain an m249 saw

    360 Image – FN M249S® PARA

    How to maintain an m249 saw

    Own the newest addition to the Military Collector Series – the FN M249S® PARA, a semi-auto version of the currently contracted FN® M249 PARA. The PARA was designed for airborne, armored infantry and close quarters combat (CQC) operations with a shorter barrel and collapsible buttstock. It retains all of the features of the FN® M249 SAW and can be field-converted back to the standard model configuration in just 30 seconds.

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    How to maintain an m249 saw

    How to maintain an m249 saw

    • Caliber: 5.56x45mm
    • Operation: Closed-bolt
    • Mag Capcity: 200 Rd. belt or 30 Rd. mag
    • Weight: 16 lb.
    • Barrel Length: 16.1″
    • Overall Length: 31.5″ – 37″
    • Overall Height: 9.5″
    • Trigger Pull: 4 – 6.5 lb.
    • Twist Rate: 1:7 RH

    Semi-automatic replica of the government-issue FN® M249 PARA

    Robust gas piston system

    Formed steel frame

    Folding steel bipod

    Folding carry handle

    Flip-up feed tray cover and feed mechanism

    Top-cover integrated MIL-STD-1913 rail systems for optics

    Cold hammer-forged steel

    Hard chrome-plated bore and chamber

    Quick-change barrel capability

    Ergonomic buttstock contains hydraulic buffer that allows user to maintain high rate of fire with accuracy and effect

    Redesigned trigger mechanism for semi-automatic fire

    Non-reciprocating charging handle

    Standard disintegrating link belt-fed

    Under-mounted polymer ammunition container helps keep ammunition cleaner for reduced wear and added reliability