STS Sopmod Tactical Stock for M16/AR15/M4 Platforms

The IMI Defense™ STS Sopmod Tactical Stock is a premium-duty stock system engineered for enhanced stability, shooter comfort, and mission-ready performance on AR15, M16, and M4 rifle platforms. Featuring a robust SOPMOD-inspired design combined with advanced stabilization technology, the STS delivers superior ergonomics and dependable reliability in demanding tactical environments.

Constructed from a high-quality fiber-reinforced polymer compound, the STS offers exceptional durability while maintaining a streamlined and lightweight profile. Its rigid A-frame structure enhances strength and stability without adding unnecessary bulk to the rifle platform.

The stock is designed with an enhanced cheek weld that promotes consistent eye alignment with optics or iron sights, improving shooting comfort and overall accuracy during extended use. A slim low-profile overmolded rubber buttplate helps improve shoulder retention and recoil management while maintaining a compact tactical footprint.

At the core of the STS design is IMI Defense™ patent-pending “LTS – Leaves Tension System,” an integrated tension mechanism engineered to apply constant pressure against the buffer tube. This system significantly reduces movement, rattling, and unwanted play commonly associated with adjustable stocks, resulting in improved weapon stability and enhanced shooting precision.

The STS also features a shielded slide-release latch for added durability and impact protection, along with integrated watertight battery storage compartments sealed with O-rings to securely store CR123 or AA batteries in harsh environmental conditions.

Multiple sling attachment options, including ambidextrous QD sling ports, provide flexible carry configurations for tactical and professional applications.

Built for reliability, comfort, and advanced tactical functionality, the STS Sopmod Tactical Stock is an ideal upgrade for duty rifles, defensive carbines, and professional shooting platforms.

Features & Benefits

• SOPMOD-inspired tactical stock design
• Constructed from high-quality fiber-reinforced polymer compound
• Compatible with Mil-Spec and commercial buffer tubes
• Enhanced cheek weld for improved comfort and sight alignment
• Patent-pending LTS™ (Leaves Tension System) stabilizes the stock and reduces rattling
• Constant-pressure tension system enhances rigidity and shooting stability
• Slim low-profile overmolded rubber buttplate
• Shielded slide-release latch for added protection and durability
• Watertight O-ring sealed battery storage compartments
• Storage compatible with CR123 or AA batteries
• Ambidextrous QD tactical sling attachment ports
• Durable construction for demanding tactical and field use