Magpul STR Carbine Stock Mil-Spec Gray, Collapsible

Made in the USA, the Magpul STR is a drop-in replacement buttstock for AR-15/M4 carbines that use mil-spec sized receiver extension tubes. A storage-capable version of the CTR, the STR improves cheek weld while integrating two water-resistant battery tubes into a compact, reinforced polymer A-frame. The design includes two integral sling loops, a reversible push-button QD sling mount, and a replaceable 0.30″ thick rubber butt-pad for positive shoulder purchase even with body armor or modular gear. A shielded operation lever and supplemental friction locking system help prevent accidental operation and minimize excessive stock movement for enhanced weapon stability.

Key Specifications

• The finish is Gray.
• The material is Polymer.
• The model is designated STR.
• The stock uses a Collapsible adjustment type with 6 positions.
• The length of pull adjusts from 10.90″-14.20″.
• The design incorporates Water-Resistant Battery Storage Tubes.
• The unit includes a replaceable 0.30″ thick rubber butt-pad for secure shoulder purchase.
• The stock is compatible with Mil-Spec receiver extension tubes.
• The Tube Included spec is No.
• The product is Made in the USA.

Engineered for practical use on AR-15/M4 platforms, the STR combines compact, reinforced construction with integrated storage and secure mounting options to support modular setups. Its storage-capable layout and friction-locking stability make it well suited to users who value a clean profile, reliable adjustment, and enhanced ergonomics for a wide range of field applications.

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