Articles / Blog
Explore the latest news, detailed guides and comparisons on Airsoft, HPA and technology.
Recent articles
MAXX Model Hop-Up: Differences Between Models, Versions, and Compatibility with HPA Kits
Complete Guide to MAXX Model Guns: Differences from Clones, Compatibility Chart by Replica, and Why You No Longer Need Springs or O-Rings with an HPA Kit.
Silent Industries Alpha Hop-Up: Differences Between Versions and Compatible Kits
Discover the differences between the previous Silent Industries Alpha and the 2026 version, how its design has changed, and why the compatible kit is not the same.
Retro Arms: Differences Between Versions and How to Identify Yours
Discover the differences between the Basic, CNC Ultra, and V2 versions: color, physical features, price, and which HPA kit you need for each one.
First M4 lower made of pressed carbon fiber: experiment, weight, and lessons learned
First experiment with an M4 lower made of pressed carbon fiber: 3D design, epoxy resin, grip inserts, and a weight comparison with the original part.
Polarstar F2 Nozzle: Length Guide, Compatibility by Model, and How to Order a Custom Fit
Complete Guide to Nozzles for the Polarstar F2: Length Chart by Model, Calculation Formula, and How to Order a Custom Nozzle if Your Size Is Not in Production.
Difference between kit versions
Detailed comparison of the three versions of HPA kits for airsoft: V1, V2, and V2.1. Discover the differences in design, installation, stability, and more.