Yes, you can build a mini manifold! The thread on the body of the Atomic regulator and the needle valve is M5. You can get M5 fittings and needle valves from SMC & Mettle Air on Amazon. I replaced my original needle valve with 2 Fabco NV 55 (the one with 10/32 ports, which meant I needed thread adapters). This is what I ordered to build the manifold:
2 of SMC M Series Brass Miniature Tube Fitting, Universal Elbow, M5x0.8 Female x Male
1 SMC M Series Brass Miniature Tube Fitting, Nipple, M5x0.8 Male, 11mm Length,
1 of SMC M Series Brass Miniature Tube Fitting, Union Tee, M5x0.8 Female
& 2 of SMC M Series Brass Miniature Tube Fitting, Hose Elbow, 6mm x 4mm Tube OD x M5x0.8.
I am using this set up on a SpecIII and a Chi that I have De-Chi-ed and have been very pleased. I hope this helps. If you have any questions feel free to pm me.
2 of SMC M Series Brass Miniature Tube Fitting, Universal Elbow, M5x0.8 Female x Male
1 SMC M Series Brass Miniature Tube Fitting, Nipple, M5x0.8 Male, 11mm Length,
1 of SMC M Series Brass Miniature Tube Fitting, Union Tee, M5x0.8 Female
& 2 of SMC M Series Brass Miniature Tube Fitting, Hose Elbow, 6mm x 4mm Tube OD x M5x0.8.
I am using this set up on a SpecIII and a Chi that I have De-Chi-ed and have been very pleased. I hope this helps. If you have any questions feel free to pm me.