Product Description
Strike Industries FSA Dual Folding Adapter | Stock Edition
The Strike Industries FSA Dual Folding Adapter delivers a versatile folding stock system designed for firearms equipped with a rear 1913 Picatinny interface.
Unlike traditional side-folding systems, the patented dual-folding mechanism allows the stock to fold either left or right without reversing or reconfiguring the hinge. A positive locking mechanism holds the assembly in its folded position, while the quick-deployment design allows it to return to its extended position.
Built with a steel hinge and 6061-T6 aluminum components, the FSA combines durability, lightweight construction, and modular functionality. The Stock Edition includes a rubber anti-slip buttpad and ambidextrous QD sling attachment points.
Key Features
- Dual Folding Design: Folds left or right without hinge reconfiguration.
- 1913 Picatinny Mount: Compatible with suitable rear Picatinny mounting interfaces.
- Positive Folding Lock: Secures the assembly in its folded position.
- Quick Deployment: Pull-up release mechanism for unfolding.
- 3-Degree Downward Tilt: Designed to reduce ejection-port interference when folded right.
- Durable Construction: Steel hinge with 6061-T6 aluminum base, adapter, and strut.
- Ambidextrous QD Mounts: Sling attachment points on both sides.
- Rubber Buttpad: Anti-slip surface for shoulder contact.
- Modular Platform: Supports compatible interchangeable components sold separately.
Don’t forget your RXM chassis or cheek riser
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Specifications
| Specification | Details |
|---|---|
| Manufacturer | Strike Industries |
| Model | FSA Dual Folder, Stock Edition |
| SKU | SI-FSA-DUAL-STOCK-N-OPT |
| Mounting Interface | 1913 Picatinny |
| Extended Added Length | 9.18 inches |
| Folded Added Length | 1.02 inches |
| Weight | Under 10 oz |
| Hinge Material | Steel |
| Base, Adapter & Strut | 6061-T6 Aluminum |
| Folding Direction | Left or Right |
Package Includes
- 1 × Fully assembled FSA Dual Folding Adapter with stock
- 4 × Rubber adjustment pads
- 1 × T25 Torx tool
- 1 × Warning card
Important: Stock Edition is intended for rifle or properly registered short-barreled rifle configurations. Firearm, chassis, and optional accessories are not included. Observe applicable laws and manufacturer compatibility restrictions.


