From MadBull their body has officially been released:
8 LICENSED M4/ AR models: Stag Arms, Noveske, Daniel Defense, Barrett, PWS, Gemtech and Ddouble Star
Features:
- 3D design from scratch (not just copy others)
- T6 Aluminum material
- Authentic trademark
- Deep "CNC" trademark engraving (Not cheap laser engraving)
- One world-famous MadBull Ultimate Hopup ($40 USD value) with optional LED tracer function
- Matte silver steel color pins (decorative)
- Compatible with most TM, JG, CA, and Echo1 AR/ M4. (Small modification may needed)
- Compatible with all MadBull accessories, including Handguard rails, Outter barrels, Hopup systems, Inner barrels, and receivers.
MSRP: $99 USD
Manual [here]
Review: First impression review by Arnies [here](MadBull)