It is recommended that an AR/M4 armorer installs the Gun Guardian grip.
STEP 1: Ensure the firearm is unloaded, that the chamber is empty, and the selector switch is in "Safe".
STEP 2: Place the firearm on its top, so the bottom of the grip is pointing towards the sky. (This will help prevent the selector switch spring and detent from falling out). Remove the factory grip by unscrewing the grip screw in the bottom of the lower receiver. DO NOT re-use the factory grip screw.
STEP 3: Rotate the adapter of Gun Guardian into installation mode (see photograph below).
STEP 4: Use the provided grip screw and align Gun Guardian to the lower receiver of the AR/M4, ensuring that the selector switch spring aligns with the spring retaining hole in the grip. HAND TIGHTEN the grip screw and Gun Guardian into the lower receiver.
STEP 5: Ensure that the "Shield" of the Gun Guardian grip slides forward and locks into place, protecting the trigger. If the Shield will not slide forward, make sure the selector switch is in "Safe" and try again.
STEP 6: Press the "Release Button", which is on the bottom of the grip, and slide the Shield backwards, towards the buffer-tube. Once the Shield is pulled completely rearwards, rotate the grip downward to lock it into the Ready-To-Fire position.
STEP 7: To lock Gun Guardian into Safe, put the selector switch in "safe", pull the Shield downward (like removing the magazine), rotate the grip upward (so it's parallel to the rifle), then slide the Shield towards the barrel until it's locked into place, protecting the trigger.
STEP 8: Repeat steps 6 and 7 several times, ensuring proper function. If there are any issues contact us immediately.
STEP 9: If the Gun Guardian grip is functioning properly, reload the AR/M4 following your agency’s policy.