Barrel Profile
Barrel Standoff Plug

The X-22 Backpacker is configurable for either standard taper barrels or 0.920” bull barrels. The stock comes preconfigured for standard taper barrels if installation of a bull barrel is desired remove the round barrel standoff plug in the forend.

                Installing Receiver

Step 1:  Remove receiver and screws from existing stock and forend per manufacturer’s instructions.

Note: Be sure safety switch is centered during removal and installation of receiver.

Step 2: Make sure barrel and receiver are still together and locked into place. Place receiver into X-22 backpacker stock, install receiver screw, and tighten to 20in-lb according to manufacturer’s instructions.

Step 3:  Install forend to barrel and set gap so it does not interfere with stock when “taking down” the rifle. Tighten screw to 20in-lb.

Note: Takedown block may need to be adjusted if desired gap is not achievable. Please refer to manufacturer’s instructions for adjustment. If you find your forend does not align well with the stock body, adjustment of the barrel clamp block may be needed. See instruction below.

Step 4:  Verify install and perform function check, including safety switch function.

Note: Upon installation, the safety switch may rotate and put the detent spring out of alignment. If necessary, rotate safety by hand to re-engage detent.

                Adjusting Forend Alignment, if Needed

Step 1: Separate barrel from receiver following factory instructions.

Step 2:  Loosen barrel clamp block retaining screws and shift clamp to the right (looking down at the screw heads). Lightly snug barrel clamp block retaining screws and reinstall barrel being careful not to rotate too far and disturb the barrel clamp block.

Step 3:  Carefully rotate barrel and forend until forend and stock body align.

Step 4: Separate barrel from receiver being carful not to disturb the barrel clamp block.

Step 5: Tighten barrel clamp block retaining screw to 20in-lb according to manufacturer’s instructions.

Step 6:  Reassemble barrel to receiver. Verify install and perform function check.

                Storage

Step 1: Separate barrel from receiver following factory instructions.

Step 2: Insert barrel shank into barrel plug at the toe of the stock, and pivot barrel into locked position. Ensure the forend locks into place and is secured by the forend latch. Confirm the barrel is secure by gently pulling the barrel away from the stock, the barrel should not move.

Note: Failure to confirm secure storage may result in damage of the stock and/or barrel.

                Deployment

Step 1: Separate the forend from the stock by pressing the release button on the left and right side of the forend, pull the barrel away from the stock and remove barrel from the barrel plug.

Step 2: Reassemble barrel to receiver. Verify install and perform function check.

                Cheek Riser & Storage

Cheek Riser Storage Compartment

The Magpul X-22 Backpacker Stock has and integrally hinged storage compartment in the cheek riser portion of the stock. To open storage compartment, slide storage door latch forward towards muzzle and lift storage door. To close simply press down on the storage door until the latch engages on the stock.

                Cheek Riser Storage Capabilities

The compartment can store up to 3 spare 10 round magazines, or by repositioning of the storage divider 1 10 round magazine and 1 50 round box of ammo.

To reposition the storage divider, remove from the standard location and insert into the stowed position at the rear of the compartment.

                “Optic Height” Storage Door Riser

The Magpul X-22 Backpacker Stock includes an “optic height” storage door riser which provides an additional ½” comb height for use of optics mounted on the receiver or the X-22 Backpacker Optics mount (MAG799).

To swap out risers open the storage door all the way until the lug clears the slot and pull off. To install replacement riser simply align the hinge lug on the storage door slot and press down until the lug pops into place. Close the storage door riser and ensure proper function before use.

NOTE: X-22 Backpacker Optics Mount (MAG799) sold separately.

                Grip Storage

The Magpul X-22 Backpacker Stock has a water-resistant storage compartment in the grip which provides additional storage for a small multitool or other survival equipment. To access the grip storage compartment, depress the locking latch portion of the grip core and remove the grip core from the stock. To reinstall, slide the grip core into the grip until the locking latch engages.