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Parts of the Firearm

Congratulations on your choice of a Remington®. With proper care, it should give you many years of dependable use and enjoyment. For best results, we recommend that you use Remington Ammunition - the ammunition used in factory testing your firearm against our rigorous function and performance standards.

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Overview

Learn the important components of your Model 887 NitroMag firearm.

General Operations

The Remington Model 887™ NitroMag™ is a pump operated shotgun, incorporating a steel barrel and receiver over molded with high strength polymer. It is capable of firing multiple shots with each cycle of the action and pull of the trigger. At the start of the firing cycle after a chambered shell is discharged the bolt unlocks. As the fore-end or action is opened, the spent shell is pulled from the chamber and expelled out of the receiver through the ejection port. As the fore-end continues rearward the hammer is cocked and the trigger is reset. When the fore-end is in the full rear position, a shell is released from the magazine onto the carrier. As the fore-end is moved forward the carrier rises and places the new shell in front of the bolt. When the fore-end is moved fully forward, the new shot shell is chambered by the bolt and the bolt locks into position, completing the cycle.

SERIAL NUMBER, SHOTSHELL GAUGE AND LENGTH

The serial number is located on the bottom of the receiver. See Picture 2. 

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Specifications for the gauge and length of the shotshells intended for use in your shotgun are located on the shooter’s left side of the barrel.

WARNING! Only use the specified gauge and length shotshell ammunition specified for your shotgun as designated on the barrel. See To Load Your Firearm.

Parts of the Firearm

The Safety Mechanism

The safety mechanism of the Model 887TM NitroMagTM shotgun provides protection against accidental or unintentional discharge under normal usage when properly engaged and in good working order. The safety mechanism is not a substitute for following the rules of safe gun handling. The cross-bolt type safety prevents the trigger from being pulled when engaged in the "ON" or "SAFE" position.

To engage the safety mechanism for right handed guns, push the "safety button" located at the rear of the trigger guard to the shooter's right until the button stops and the RED BAND MARKING CANNOT BE SEEN. See Picture 3.

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Always engage the safety mechanism by moving the safety button to the shooter’s right before handling, loading or unloading the firearm.

When you are ready to FIRE the firearm, dis- engage the Safety Mechanism by pushing the Safety Button to the shooter’s left until the button stops and the RED BAND MARKING IS VISIBLE. See Picture 4. You have now disengaged the Safety Mechanism and the shotgun is ready to FIRE.

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Do not touch the trigger while moving the safety button. Your fingers and all other objects should be kept outside of the trigger guard and away from the trigger until you are actually ready to FIRE.

Never pull the trigger when the Safety Mechanism is in the "ON" or "SAFE" position.

WARNING! The firearm will fire when the trigger is pulled and the safety mechanism is in the "OFF” or “FIRE" position.

Even when the safety is engaged in the "ON" or "SAFE" position, careless handling can cause the firearm to discharge. See the Ten Commandments of Firearm Safety.

The Locking Device

This firearm was originally sold with a key-operated locking device to assist the owner in protecting against unauthorized use. These are storage locking devices and the firearm should be completely unloaded when stored or not in use. Using a locking device cannot substitute for securing your firearm and ammunition in separate locked locations. See the Ten Commandments of Firearm Safety.

THE LOCKING DEVICE DOES NOT ELIMINATE THE NEED FOR SAFE GUN HANDLING AND STORAGE, INCLUDING KEEPING THIS AND EVERY GUN UNLOADED AND LOCKED IN A SECURE PLACE WHEN NOT IN USE. READ AND FOLLOW THESE AND OTHER SAFETY RULES IN THIS INSTRUCTION BOOK. FAILURE TO READ, UNDERSTAND AND OBEY THESE RULES CAN RESULT IN SERIOUS PERSONAL INJURY OR DEATH. SEE THE TEN COMMANDMENTS OF FIREARM SAFETY.

Keep your locking device engaged when your firearm is not in use. Keep the keys in a secure place, inaccessible to others. DO NOT leave your keys or any ammunition with your firearm, which should be kept unloaded and locked in a safe place.

The Fore-end and Bolt Release

The action will open when the fore-end is moved rearward. The bolt release is used to unlock the bolt. The action can be opened when the bolt release is activated by pushing inward while moving the fore-end rearward. See Picture 5.

WARNING! When the fore-end or action is forward in the closed position and the safety mechanism is in the “OFF” or “FIRE” position, the shotgun can be discharged by pulling the trigger. 

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The Trigger Assembly

Pulling the trigger DISCHARGES the firearm.

The trigger assembly of the Model 887TM NitroMagTM shotgun has been set at the Remington factory for optimal trigger pull. The factory settings provide a crisp, clean trigger pull for superior performance. The trigger assembly is not adjustable. All repairs to the trigger assembly must be made by the factory or a REMINGTON® AUTHORIZED REPAIR CENTER.

WARNING! Never place your finger on the trigger unless you are ready to discharge the firearm.

The Barrel

WARNING! The inside of the barrel must be clean and free of obstructions. See the Ten Commandments of Firearm Safety.

To check the Barrel for obstructions:

  1. Point the shotgun in a safe direction.
  2. Engage the safety mechanism by placing the safety mechanism in the "ON" or "SAFE" position. The Red Band Will NOT Be Visible.
  3. While pressing the bolt release, open the bolt by pulling the fore-end rearward.
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  4. Look into the ejection port, visually check the chamber, carrier, and magazine to make sure the shotgun is completely unloaded.
  5. Insert a cleaning rod into the muzzle.
  6. Push the rod completely through the barrel until the rod can be seen at the ejection port. 

To remove object from inside the Barrel:

WARNING! NEVER try to remove an object from the barrel by loading another shotshell and firing. This may cause the barrel to burst or a shotshell to rupture and cause serious personal injury or death.

  1. Point the shotgun in a safe direction 
  2. Engage the safety by placing the safety mechanism in the "ON" or "SAFE" position. The Red Band Will NOT Be Visible.
  3. Press the bolt release and open the bolt by pulling the fore-end rearward.
  4. Look into the ejection port, visually check the chamber, carrier, and magazine to make sure the shotgun is completely unloaded.
  5. To remove the barrel, See: “To Disassemble The Firearm for Cleaning”.
  6. Insert cleaning rod into the muzzle and lightly tap rod to free object from the barrel.
  7. Push rod all the way through the barrel until the rod can be seen at the chamber opening.
  8. If an object cannot be easily pushed out of the barrel with a cleaning rod, return the firearm to the factory or a REMINGTON® AUTHORIZED REPAIR CENTER. 

How To Assemble:

The Model 887TM NitroMagTM was shipped with the barrel assembly removed. See Picture 6.
Note: The bore and chamber must be cleaned before assembly. See “Cleaning, Lubrication, and Maintenance”.

  1. Engage the safety by placing the safety mechanism in the “ON” or “SAFE" position. The Red Band Will NOT Be Visible.
  2. Visually check the inside of barrel making sure there are no obstructions.
  3. Unscrew and remove the magazine cap by turning it counter clockwise.
  4. Slide the cardboard packing ring forward and remove from the magazine tube.
    WARNING! DO Not pump the action or pull the trigger repeatedly with the barrel removed.
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  5. Press the Bolt Release while moving the fore-end approximately halfway rearward. See Picture 5.
  6. Insert the barrel into the receiver and the barrel ring over the magazine tube. See Picture 7.
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  7. Once the barrel is fully inserted into the receiver, replace the magazine cap on top of the magazine tube. Tighten by turning clockwise until hand-tight.
  8. Point the firearm in a safe direction.
  9. Open the bolt by pressing the bolt release while moving the fore-end fully rearward. 
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