Full Size MP5/SP5 Conversion Kit Housing
$120.00
Description:
The MP5 3-Position Conversion Housing enables Super Safety compatibility in MP5-pattern builds, providing a durable, purpose-built solution where factory housings fall short.
This will work with HK SP5, PTR9 CT 9RS, AP5, MAC, ZF5, P0F5.
Comes with metal reinforcement plates around the hammer/trigger holes to prevent cracks. A set of custom length antiwalk pins is included to handle the wider width of the plates.
Constructed from high-strength, heat-treated carbon fiber reinforced nylon, it offers excellent durability, impact resistance, and precise tolerance retention under heavy use. The matte finish and factory-style ergonomics preserve the original MP5 feel while ensuring proper fitment, alignment, and reliable Super Safety operation.
Key Features
- Designed for MP5-pattern platforms
- Enables Super Safety system compatibility
- Carbon fiber reinforced nylon construction
- Lightweight, rigid, and highly durable
- Factory-style ergonomics and grip angle
- Matte finish for a clean, professional look
TROUBLE SHOOTING
Trigger Not Resetting
Symptoms:
- Trigger fails to reset
- Inconsistent reset during cycling
Fixes:
- Ensure conversion housing and trip are fully seated
- Cycle the charging handle 10–20 times to mate components
- Verify proper installation and alignment
⸻
Rough or Stiff Cycling
Symptoms:
- Charging handle feels stiff
- Bolt carrier does not move smoothly
Fixes:
- Clean and lubricate bolt carrier and contact surfaces
- Check for debris or interference
- Ensure proper clearance between components
⸻
Inconsistent Function
Symptoms:
- Unreliable or inconsistent operation
Fixes:
- Confirm compatibility with MP5/SP5 platform
- Verify proper installation of all components
- Ensure bolt carrier cycles freely
⸻
Proper installation, lubrication, and free bolt movement are critical for reliable operation.

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