Remington 870, 870 Super Magnum Instruction Manual

WARNING! BEFORE LOADING, ALWAYS CHECK THE BARREL MARKING FOR THE CORRECT GAUGE AND CHAM-
BER LENGTH. NEVER USE AMMUNITION WHICH EXCEEDS THE CHAMBER LENGTH SHOWN ON THE BARREL.
WARNING! Be sure the rim of each shell snaps past the shell latch to prevent the shell from sliding back over
the carrier.
If the shell slides back over the carrier:
• Engage the safety mechanism. Make sure the 
RED BAND IS NOT SHOWING.
• Keep the firearm pointed in a safe direction.
• Forcefully 
OPENthe action or 
• 
REMOVEthe...

WARNING! Always wear eye protection and use extreme care when removing the magazine spring retainer, as
the retainer is under tension from the magazine spring.
7. Place the small end of the magazine plug into the magazine spring. See Picture 11.
8. Put the magazine spring retainer over the large end of the 
magazine plug.
9. Push the magazine spring, magazine plug and the magazine retainer
into the magazine tube.
10. Tap the magazine spring retainer into the magazine tube, even to
the end of the magazine...

NOTE:The top right edge of the slide may bind on the bottom
front edge of the ejection port in the receiver. To free the slide,
push the front end of the bolt down. See Picture 15.
9. Lift the breech bolt assembly and slide assembly from the
rear of the action bars.
NOTE:Steps 10-12 are for the Model 870™ Super Magnum™ ONLY.
10. Turn breech bolt assembly upside down. (Refer to 
NOTEafter step 8.)
11. Place a small thin-bladed screwdriver under tab of port cover and
lift slightly. See Picture 16.
12....

PICTURE 19
PICTURE 20
PICTURE 21
PICTURE 22
How To Reassemble
1. Check to make sure that the end of the action bar lock is below the
end of the left connector. See Picture 19.
2. Carefully insert the trigger plate assembly (carrier first) into 
the receiver.
3. Position to align the holes and tap in front and rear trigger 
plate pins.
4. Place the fore-end assembly over the magazine tube.
NOTE:Steps 5 & 6 are for Model 870™ Super Magnum™ only.
5. Slide port cover spring into position in the bottom
of the...

How to Obtain Parts and Service From Remington.®
TO ORDER PARTS:
Many Remington®Dealers and Authorized Repair Centers carry a full line of parts. Please check with them first
before ordering parts.
To expedite your PARTS order or request REPAIR SERVICE visit our web site at www.remington.com. Detailed
instructions are provided along with parts and/or service order forms. You may also reach Remington by calling
our toll free customer service number, 1-800-243-9700, Mon.-Fri., 9:00 AM-5:00 PM Eastern time....

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MODEL 870™
Pump Action Shotgun  

17
NOTE:12 Ga. Express Listed Below
1 Action Bar Lock
2 Action Bar Lock Spring
NOTE:All barrels (same gauge) are 
interchangeable without adjustment.
3 Barrel Assembly 
4 Breech Bolt 
Breech Bolt Assembly 
7 Carrier 
Carrier Assembly 
8 Carrier Dog
9 Carrier Dog Follower
10 Carrier Dog Follower Spring
11 Carrier Dog Pin
12 Carrier Dog Washer
13 Carrier Pivot Tube
14 Connector, Left
15 Connector, Right
16 Connector Pin
17 Ejector 
18 Ejector Rivet, Front
19 Ejector Rivet, Rear
20 Ejector Spring  
21...

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Model _________________ Serial # ________________  Date Purchased ______________
Purchased From ___________________________ Price Paid _________________________
Remember to complete and return the Firearm Warranty Registration Card in order to 
obtain full benefit of your Limited Two Year Firearm Warranty.
A WORD ON THE MAINTENANCE AND CARE OF YOUR REMINGTON FIREARM
Don’t Alter or Modify Your Gun and Have it Serviced Regularly.
Your firearm hasbeen designed to operate according to certain factory...

19
DATE SERVICE PERFORMED PERFORMED BY
Firearm Maintenance Record 

Printed in U.S.A. Remington is a trademark registered in the United States Patent 
and Trademark Office by Remington Arms Company, Inc.
Form RD 7058  Rev. Orig. 601