HK 50237550 Slimline Black Polymer Retractable
The Heckler & Koch HK 50237550 Slimline Black Polymer Retractable stock is built for shooters who want a compact, adjustable setup without sacrificing build quality or ergonomics. H&K's polymer construction keeps weight down while delivering the durability you'd expect from a factory-engineered component, and the retractable design lets you dial in length of pull for different shooting positions, gear layers, or simply personal preference. Whether you're running drills at the range, hunting in varied conditions, or setting up a defensive carbine, this stock gives you the adjustment you need in a profile that doesn't bulk up your platform.
Finished in matte black, it blends cleanly with most modern rifle builds and won't catch light or draw attention downrange. The retractable mechanism is straightforward to use and lock—no tools required for adjustment, so you can fine-tune your fit on the fly if conditions or your kit change mid-session.
This is an original H&K factory part, so fitment and function are engineered to spec. If you're building or upgrading an H&K platform and need reliable, no-fuss stock adjustability, this Slimline retractable delivers without pretense or complications.
Key Features
- Retractable design for quick length-of-pull adjustment
- Black polymer construction for lightweight durability
- Factory H&K engineering and fit
- Matte black finish resists glare
- Tool-free adjustment mechanism
Specifications
| Brand | Heckler & Koch |
| Part Number | 50237550 |
| Type | Retractable Stock |
| Material | Black Polymer |
| Finish | Matte Black |
Frequently Asked Questions
What H&K firearms is this stock compatible with?
This is an H&K factory OEM part (50237550). Verify compatibility with your specific model before ordering, as H&K stocks are engineered for particular platforms. Contact H&K or consult your firearm's documentation if you're unsure about fitment.
Is this stock adjustable for length of pull?
Yes. The retractable design allows you to adjust and lock the stock at different positions to suit your needs, and no tools are required to make adjustments.
What color is the finish?
It comes in matte black, which matches standard H&K rifle finishes and keeps glare to a minimum.

