Madbull does not make that silencer.
http://airsoftdepot.ca/catalog/produ...oducts_id=1815
All you need is a regular birdcage flash hider to clip this on.
The stock is a run-the-mill CRANE, again, you can pick which ever you want.
Pistol grip is a regular A2-style grip. It's the stock grip on most airsoft M4s/M16s.