Self contained HPA blaster. Running off a portable compressor that will eventually be mounted on the stock so no air tank needed. Not as slick and quick as an air tank as
HPA Tempest – Frontline Foam
Reddit - Dive into anything
3D file PNAR15 (Nerf HPA AR-15)・3D printable model to download・Cults
The Nerf Blaster Modification Guide - Luke Goodman - Blaster-Time
How To Make A Nerf HPA Blaster || Easy Guide to Air Blasters Part 2 - YouTube
Milsig Products - M79 Nerf Dart Blaster etc - Off-Topic - Gel Blaster Forum
What HPA Nerf is Like In Play – Frontline Foam
Neutrino V2 HPA Nerf Blaster digital STL - Etsy
WIP: Semi auto fully mechanical HPA blaster variant with 'bottle on board' / investigation of feasibility : r/Nerf
How To Make A Nerf HPA Blaster || Easy Guide to Air Blasters Part 2 - YouTube