Item #:
873750001500
UPC: #:
873750001500
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Magpul CTR Carbine Stock MAG310 Black Mil-Spec AR-15 M16 M4

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The Magpul CTR Carbine Stock delivers enhanced stability and versatility for AR-platform rifles through its innovative friction lock system and dual side storage. This MAG310-BLK model transforms standard carbine setups by eliminating buffer tube play while providing secure storage for batteries or small accessories.

What Makes This Different

The CTR's friction lock mechanism sets it apart from standard mil-spec stocks by creating a rock-solid lockup on any mil-spec carbine buffer tube. While basic stocks rely solely on the castle nut for positioning, the CTR adds lateral pressure through an adjustable friction lock that eliminates wobble and movement. This system maintains zero shift during position changes and provides consistent cheek weld across all six positions.

Key Features

  • Friction lock system eliminates buffer tube play and movement
  • Dual side storage compartments with water-resistant rubber caps
  • Enhanced rubber buttpad with 0.30" length of pull reduction
  • Ambidextrous QD sling swivel sockets for versatile carry options
  • Fits all mil-spec carbine buffer tubes (1.14" outer diameter)
  • Six-position adjustable length of pull from 10.5" to 13.5"
  • Reinforced polymer construction with steel hardware
Field testing demonstrates the CTR's ability to maintain zero during rapid position transitions and high round count sessions. Competition shooters benefit from the consistent cheek weld across positions, while duty users appreciate the secure storage for CR123 batteries or cleaning supplies. The enhanced buttpad reduces felt recoil compared to standard A2-style stocks, improving follow-up shot speed during rapid fire sequences.

Technical Specs

  • Weight: 8.8 ounces
  • Length of Pull: 10.5" to 13.5" (six positions)
  • Material: Reinforced polymer body with steel components
  • Compatibility: Mil-spec carbine buffer tubes only
  • Storage: Two side compartments, 4.25" x 0.75" each
  • Sling Mounts: Two QD sockets, ambidextrous placement
  • Color: Black (MAG310-BLK)
  • Made in USA
The CTR represents a significant upgrade over basic carbine stocks without the complexity of adjustable combs or heavy materials. Professional armorers and serious shooters choose this stock when reliability and precision matter more than budget considerations.