6 Shot Sidesaddle for Mossberg 500, 590 12 Gauge Shotguns – TacStar

Shell Holder Material: Polymer
Backing Plate: Aluminum
Capacity: 6 12 Gauge Shells
Fits: Mossberg 500/590 12 Gauge

Before Installation!! If your Mossberg shotgun is equipped with a field grade forend that extends past the receiver the 6 Shot TacStar Sidesaddle will NOT work on your gun. You will need to change out your forend or use the 4 Shot TacStar Sidesaddle.

Features:
Unbreakable, corrosion resistant polymer shell holder
Rugged, aluminum backing plate
Easy mounting, no gunsmithing
Mounting screws included

Hardware Included: 2 allen wrenches, 1 Long screw and washer to replace receiver pin, 1 8/32 screw, 1 quarter inch nut, 6 shot shotshell holder with 6 allen screws, and aluminum backing plate.

Tools Needed: Flat Head Screwdriver, Quarter inch wrench or socket

The TacStar Sidesaddle mounts 6 extra rounds on your shotgun in a convenient and accessible location for fast reloading. The tough, weatherproof shell carrier is attached to an aluminum mounting plate that installs directly on the shotgun receiver.

Installation is easy, and in most cases requires no alterations to the shotgun. All mounting screws are included, no gunsmithing required.

FOREND ADVISORY: If your shotgun is equipped with a field grade forend that extends onto the sides of the receiver, it will hit the 6 shell SideSaddle and not cycle fully. To remedy; shorten the length of forend or equip the shotgun with a TacStar or Pachmayr forend.

 

TacStar SideSaddle Mossberg 500 Instructions

1. Always make sure your shotgun is unloaded.

2. Using the smallest allen key provided, remove the 2 screws holding the shell holder to the aluminum backing plate.

3. Using the long screw provided, place the screw against the pin on the right side of the receiver, pushing screw in to remove the pin.

4. Action must be open, you will see a slotted screw on the inside of the receiver. Remove screw and put with the pin you removed for safe keeping.

Careful! Don’t pull out the ejector as you remove the slotted screw. Hold the ejector down with your finger and remove the screw.

5. Using the 8/32 screw provided, screw into the receiver, once installed turn shotgun over so the ejection port is facing down, line up your mounting plate, using provided allen wrench, tighten the screw into the plate.

DO NOT OVERTIGHTEN, can cause action not to work, in this case, back the screws out some and it should start working again.

7. Place the quarter inch nut onto the ejector screw in the countersunk hole.

8. Make sure all screws are snug and cycle the action to make sure there is no binding.

9. Place shotshell holder onto backing plate and screw in the 6 screws that hold it to the backing plate.

 

Mossberg 590/590A1 TacStar 6 Shot Sidesaddle Installation Instructions

1. Always make sure Shotgun is not loaded.

2. Using the small allen wrench provided, remove the 2 screws holding the shot shell holder to the mounting plate.

3. Keep slide locked back, remove the screw from the receiver, replace with the provided screw.

4. Remove the pin from the receiver above the trigger and safety from the right side. Using the provided long screw and washer, push the pin out.

5. Line up the mounting plate on the receiver. Push down slightly so it pushes the longer screw through the hole. Now you can snug up the long screw using the provided allen wrench.

6. Using the provided nut, screw onto the small screw that was inserted in step one.

7. Place shell holder on mounting plate, using the 6 provided allen screws, screw the shell holder to the mounting plate.