About the YHM sRx Thread Protector
A steel cap that protects the threads of YHM sRx muzzle devices when no suppressor is attached.
Key Features
- Caps the threads on sRx mounts when the suppressor is off
- Keeps threads clean and undamaged
- 4140 steel, black oxide
- Made in USA
Specifications
| Manufacturer | Yankee Hill Machine Co. (YHM) |
|---|---|
| Part Number | YHM-4450 |
| Type | Thread Protector |
| Material | 4140 steel |
| Finish | Black Oxide |
| Color | Black |
| Length | 0.5625″ |
| Diameter | 1″ |
| Weight | 0.448 oz |
| Mount System | sRx |
FAQ
What does it fit?
See compatibility notes above; YHM does not list specific suppressor or firearm models for this part.
What’s included?
One sRx Thread Protector as shipped by YHM.
Where can I buy it?
Order online from Black Bayou Armory or visit our store in Benton, Louisiana.






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