Leapers Inc. UTG Pro Model 4 S2 Mil-Spec Stock - Black

The Leapers Inc. UTG Pro Model 4 S2 Mil-Spec Stock is a lightweight replacement stock built for AR-15 shooters who want a slim, ergonomic platform without compromise. Molded from reinforced polymer, this black mil-spec stock combines weight savings with practical features that work equally well on the range, in the field, or at the bench. Whether you're fine-tuning an AR build or upgrading a duty rifle, the Model 4 S2 delivers the stability and control you need in a snag-free package.

The stock's slanted cheek rest and rubberized butt pad work together to anchor your shoulder and face consistently, shot after shot. That's the kind of small detail that tightens groups and builds confidence when it matters. The chamfered pad absorbs recoil without the sharp edges that can catch on gear or sling attachments, and the fully dehorned corners and melted contours keep everything smooth and snag-free during transitions or storage. An ambidextrous sling loop and QD swivel housing give you flexible mounting options for slings, whether you run single or dual-point setups.

At 7.5 inches extended length, the Model 4 S2 offers an increased length of pull compared to carbine stocks, making it a smart choice if you're running longer uppers, wearing heavier clothing, or simply prefer a more rearward sight picture. The extra-slim profile keeps weight down and doesn't add unnecessary bulk to your platform. It's the kind of no-frills, purpose-built component that works best when you don't think about it—just shoot.

Key Features

• Lightweight reinforced polymer construction with black finish
• Slanted cheek rest for consistent, stable shooting platform
• Ergonomic rubberized butt pad with recoil absorption
• Fully dehorned corners and melted contours for snag-free handling
• Ambidextrous sling loop for flexible attachment options
• Mil-Spec compatible with QD sling swivel housing
• Extended 7.5" length for increased length of pull
• Extra-slim profile keeps weight minimal

Specifications

Frequently Asked Questions

Is this stock compatible with my AR-15?

Yes, the Model 4 S2 is Mil-Spec compatible and will work with standard AR-15 buffer tubes. It's designed as a stock-only replacement, so you'll use your existing buffer tube assembly.

What's included in the package?

The package includes the stock itself. The buffer tube is not included; you'll use your existing AR-15 buffer tube system.

Who should use this stock?

The Model 4 S2 works well for AR-15 shooters looking for a lightweight, slim replacement stock with improved ergonomics. The extended 7.5" length makes it a good fit for longer uppers, shooters in heavier gear, or anyone wanting a rearward sight picture.

What makes this stock snag-free?

The dehorned corners and melted contours eliminate sharp edges that can catch on slings, gear, or storage surfaces. Combined with the ambidextrous sling loop design, it's built for smooth transitions and reliable handling.