Magpul CTR Stock Black & Buffer Tube Assembly Combo Kit

$94.95

This kit bundles the Magpul CTR stock in black with a complete mil-spec carbine buffer tube assembly, giving your AR-15 lower a zero-wobble, ready-to-mount buttstock setup in one purchase.

Magpul CTR Stock Black & Buffer Tube Assembly Combo Kit

This kit pairs the Magpul CTR stock in black with a complete mil-spec carbine buffer tube assembly, so everything needed to finish the stock section of your AR-15 lower ships in one box. The CTR’s positive locking lever eliminates wobble on the tube, and its ambidextrous push-button QD sling sockets are built right in.

CTR Stock Specs

  • Magpul CTR Carbine Mil-Spec Stock — Black (MAG310BLK)
  • Mounts on mil-spec carbine receiver tubes (1.148″ diameter)
  • Supplemental friction lock to reduce stock movement
  • Shielded release latch, sloped cheek weld
  • Premium chrome-silicon lock spring
  • Ambidextrous push-button QD sling socket + 1.25″ sling loops
  • Removable 0.30″ rubber butt-pad
  • Length: 6.9″; length-of-pull: 11.0″–13.5″; weight: 5.4 oz
  • Made in the USA

Included in This Combo

  • Magpul CTR Carbine Mil-Spec Stock — Black (MAG310BLK)
  • Mil-spec carbine receiver extension (6-position buffer tube)
  • Carbine buffer
  • Carbine buffer spring
  • Castle nut
  • Receiver end plate

WARNING (Prop 65): This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit www.p65warnings.ca.gov.

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What is included in the Magpul CTR Stock & Buffer Tube Assembly Combo Kit?

This combo kit includes the Magpul CTR Stock Carbine Mil-Spec Black (MAG310BLK) along with a complete mil-spec buffer tube assembly. The buffer tube assembly consists of a mil-spec carbine buffer tube, carbine buffer, carbine buffer spring, castle nut, and end plate — everything you need to complete your AR-15 buttstock setup in one order.

Is the Magpul CTR Stock compatible with mil-spec buffer tubes?

Yes. The Magpul CTR Stock is specifically designed for mil-spec diameter carbine buffer tubes. It is not compatible with commercial-spec buffer tubes. The buffer tube included in this combo is mil-spec, so everything fits together perfectly right out of the box.

Does the CTR Stock eliminate wobble and slop?

Absolutely. The CTR (Compact/Type Restricted) stock features Magpul’s friction lock and a positive locking lever that clamps down on the buffer tube to eliminate any movement or play between the stock and tube. This gives you a rock-solid feel that holds its position under recoil.

Does this combo work for both AR-15 rifles and carbines?

Yes. This combo is designed for standard AR-15 mil-spec lower receivers. It works with carbine-length buffer tube setups, which are the most common configuration on AR-15 rifles and carbines. It is not intended for pistol builds using a pistol brace.

Is the Magpul CTR Stock made in the USA?

Yes. Magpul manufactures the CTR Stock in the United States. Magpul is well known for producing high-quality, American-made polymer and hardware components that are trusted by military, law enforcement, and civilian shooters worldwide.

Can I run a sling with this setup?

Yes. The Magpul CTR Stock has an ambidextrous QD (quick-detach) sling socket built into the buttstock. This allows you to easily attach a single-point or two-point sling using a standard QD swivel — no additional adapters or hardware required.