AR15 M16 Replacement CTR Carbine Butt Stock Commercial - Black - Magpul
CTR Carbine Stock – Commercial-Spec
Made in the USA
Platform: AR10, AR15, M4, M16, M110, SR25
Compatibility: Com-Spec sized carbine receiver extension tube (not included) from manufacturers such as Bushmaster, DPMS, and others.
LOP, M4 Collapsed ~ 10.8”
LOP, M4 Extended ~ 14.6”
LOP Adjustment Range: 3.8”
Length, Max: 7.2”
Weight: 9.3 oz.
Weight, Stock Body: 0.57 lb.
Weight, w/ Receiver Extension: 13.6 oz.
Iconic AR Stock
Secure “Set it and Forget it” Fit
The Right Balance of Cheek Weld and Comfort
Sling Point Variety
The Magpul CTR (Compact / Type Restricted - Commercial Model) is a drop-in replacement butt stock for carbines using commercial receiver extension tubes. Designed for light, fast action the streamlined A-frame profile avoids snagging and shields the release latch to prevent accidental activation. The extra-power lock mechanism uses a premium chrome-silicon spring to avert auto-collapse failure and maintains strength by resisting spring relaxation.
The CTR also features a supplemental friction lock system that eliminates wobble for enhanced weapon stability and accuracy. The Commercial Model includes an extended 0.55" rubber butt-pad to provide positive shoulder purchase and accommodates longer slant-back extension tubes.
Mounts on Commercial-Spec Carbine Receiver Extension tube (Not included). Shielded release latch prevents snagging and accidental operation while the supplemental friction lock minimizes accuracy-robbing wobble.
Sloping cheek weld combines a slim profile with user comfort. Side mounting slots accept optional cheek risers for NON-AR15 / M16 applications. Premium chrome-silicon lock spring provides positive locking and long life.
Compatible with Magpul ASAP, ASAP QD, and other receiver-mount sling attachments. Removable 0.55” Extended Rubber Butt-Pad offers an anti-slip surface and increases impact protection.
Rear - Push-button QD sling mounts accommodate up to 1.5" swivels (Ambidextrous)
Rear / Bottom - 1.25" Sling loops
Toe - Lanyard hole for custom para-cord rigs
NOTE: There are two basic sizes of M4 Carbine receiver extensions (buffer tubes): mil-spec and commercial-spec. If you have a mil-spec extension on your rifle, make sure to order the Mil-Spec CTR.
Specifications based on extended-length (slant-back) M4 Carbine Receiver Extension may vary depending on tube specifications.
Friction lock performance may vary depending on the receiver extension's dimensional tolerances.
This item or some of its components cannot be exported from the United States of America without a valid export permit from the U.S. State Dept. Unfortunately, this also includes APO addresses due to ITAR restrictions.
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.
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.
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.
Stock Adjustment Instructions
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.
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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