AR-15 M16 Replacement CTR Carbine Butt Stock Commercial - Black - Magpul
CTR Stock Install Instructions
Step 1: Remove Existing Stock
Remove existing stock per armory guidelines. Refer to US Army TM 9-1005-319-23&P for assistance.
Step 2: Install CTR Stock
DO NOT FORCE PARTS TOGETHER!! Align the stock body with the carbine receiver extension and gently slide together until the stock stops (approx. 2-1/8”). Depress release latch with one hand. With the other hand, grasp both ends of release pin and pull down firmly. Push stock forward to mount.
NOTE: If stock does not easily slide over receiver extension, refer to fit guide on box.
Step 3: Friction Lock Test
With the stock installed and secured in position, depress the friction lock to minimize movement.
NOTE: Friction Lock performance may vary depending on exact receiver extension size.
Step 4: Verify Install
Perform final inspection including function test per US Army TM 9-1005-319-23&P Unit and Direct Support Maintenance Manual to verify correct installation. If you experience any issues during installation, please refer to the “Related Info” tab, located on the product page at www.magpul.com. Always test fire your weapon before using it in an operational environment.
Removing CTR Stock
Depress release latch with one hand. With the other hand grasp both ends of the release pin and pull down firmly. Pull the stock body clear of the carbine receiver extension.
CTR Stock Adjustment Instructions
Fully depress the release latch and pull the stock rearward to extend or push stock forward to collapse. Intermediate positions may be selected by depressing the release latch and moving the stock back to the desired position. When desired position is found re-engage friction lock bolt for best results.
Remove Rubber Butt Pad
Use a 1/8” hex key to remove the two butt pad screws. Using a bullet tip or flat head screwdriver, depress the two top snap hooks to release the pad. Install optional polymer Carbine Butt Cap if desired.
WARNING: The CTR commercial model has an extended .55” rubber butt pad to accommodate extended-length receiver extensions (buffer tubes). Removal of the butt pad is not recommended since the extension tube may protrude past the end of the stock in the fully collapsed position and may cause discomfort or injury during use.
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