Before You Start
- Ensure your firearm is unloaded and safe to work on
- Use proper tools to avoid damaging components
- Review compatibility for your specific firearm model/variant before installation
The gun will need to be partially disassembled – just go slow, and remember that each screw needs to return to its original home, so get a piece of cardboard box, draw an approximation of the receiver on it, and poke a hole in your drawing where each screw can rest until reassembly
- Clear the rifle & ensure the chamber and magazine are EMPTY.
- Unscrew/remove the tang screw from the upper/rear receiver tang, and pull off the butt stock to the rear.
- Partially open bolt/lever, remove lever pivot screw and slide lever out of the bottom of the receiver (no need to remove bolt)
- De-cock the hammer with the safety disengaged. Push forward on the hammer spring bridge and pull or push out one side of its groove. This will free the hammer spring.
- Remove hammer pivot screw, bottom trigger plate screw and side support screws to free the trigger plate from the receiver.
- Remove the trigger plate / lower tang from the bottom of the receiver (some gentle prying may be needed).
- Pull the locking lug out of the bottom of the receiver and swing the carrier out of the receiver (no need to remove the carrier pivot screw).
- Unscrew the loading gate spring (1” behind the loading gate opening) and install the new gate and screw it in.
- Reassemble in reverse order.