Description
Product Description
The Haga Defense Gen 4 Stock Extension for the FN P90/PS90 adds customizable length to the factory stock in 1″, 2″, 3″, or 4″ options, allowing shooters to achieve the perfect length of pull for improved comfort and control. Manufactured from durable MJF nylon, these extensions reuse the factory buttpad for familiar non-slip performance. The 3″ extension is ideal for Maryland compliance, and the 4″ for California, meeting state-specific overall length requirements.
Specifications
- Material: Durable MJF nylon
- Lengths Available: 1″, 2″, 3″, 4″
- Weights: 1″ – 3.9 oz; 2″ – 6.0 oz; 3″ – 8.1 oz; 4″ – 10.3 oz
- Included: Stock extension, mounting hardware
- Made in: USA
Compatibility and Installation Notes
- Compatible with all FN P90 and PS90 models
- Reuses factory buttpad
- 3″ extension optimized for Maryland OAL compliance
- 4″ extension optimized for California OAL compliance
- No permanent modifications required
Legal NoteAlways ensure your firearm configuration complies with all applicable federal, state, and local laws.









