Soon to be released this year is the HPA MTW Billet Series from Wolverine Airsoft... "Contemplating getting the HPA advantage but don't know where to start? The Billet Series Unleashed upgrades our most battle tested MTW with the Wraith X HPA stock and 13/3000cu HPA tank for the readiest out-of-the-box HPA replica."
Systema PTW M4 owners have something to rejoice about. They cannow customise theb look of their PTWs with the newly released PTS Syndicate Mega Arms Upper and Lower M4 Receivers apart from getting the PMAGs readily available for the PTWs... "New Product - PTS Mega Arms Billet Lowers, Billet Upper for Systema PTW M4!
The upper & lower receivers are 100% CNC machined from 6061 aluminum with black hard anodized surface.