Strike Industries FSA Stabilizer STAB Picatinny SI-FSA-SP-STAB (also known as the Strike Polymer FSA (STAB) Single-Side Picatinny Mounted Folding Stabilizer in Black).
This is a lightweight, polymer single-side folding stabilizing brace (often referred to as a stabilizer or brace adapter) from Strike Industries' FSA (Folding Stock Adapter) ecosystem. Designed for platforms with a rear-facing 1913 Picatinny rail, it provides a compact, adjustable, and quickly deployable solution for pistols, PDWs, or short-barreled rifles. The "STAB" designation refers to the polymer stabilizer/brace end piece.
Key Features & Specs
- Design: Single-side folding (typically folds to the right side) with a simple side button release for quick deployment and stowage. No need to reconfigure the hinge.
- Mounting: Direct Picatinny rail attachment using an M5 screw and locking plate (included). Secure and tool-friendly installation.
- Adjustment: Built-in adjustment lever for rapid length-of-pull (LOP) changes (typically 4 positions for different shooter sizes or setups).
- Material: Durable fiber-reinforced polymer (extreme material) for a strong yet lightweight build. The hinge area uses reinforced construction for reliability.
- Ergonomics: Comfortable polymer stabilizer end with good cheek weld and control. Includes a QD sling point for versatile carry options.
- Dimensions (approximate, fully assembled):
- Length: ~8.5–11.0 inches (adjustable)
- Weight: ~11.98–12.0 oz (very light for a folding brace system)
- Additional: Pre-assembled for easy out-of-the-box use. Positive and strong lock in both open and folded positions. Includes T25 L-wrench and Loctite for installation.
The SI-FSA-SP-STAB is part of Strike Industries' modern FSA lineup, emphasizing simplicity, speed, and adaptability. It excels on pistols or short platforms (e.g., AR-9 pistols, Kel-Tec P50, or other Picatinny-equipped firearms) where a compact, foldable brace improves maneuverability and storage without adding excessive weight or complexity. Users appreciate the quick LOP adjustment, solid lockup, and overall value.
Who It's For
- Owners of Picatinny-equipped pistols or PDWs wanting a lightweight, foldable stabilizing brace.
- Tactical or home-defense users needing quick deployment and compact storage.
- Builders looking for an affordable, polymer-based folding solution with modern ergonomics.
Legal Note: Stabilizing braces are subject to ATF regulations and classifications (especially on pistols). Always ensure compliance with current federal, state, and local laws regarding brace usage, SBR rules, and configuration. This product is sold as a stabilizing brace component.
