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OFF TV · Airsoft Masterclass

THE REBUTTAL PREPARATION MASTERCLASS BY ARITZ
DE LA CUEVA.

Aritz — a leading gunsmith and founder of La Cueva — guides you through the complete method of replica preparation. From gearbox fundamentals to advanced machining. From internal components to field shooting.

Register for the masterclass → View included content
Free registrationNo strings attachedOpening noticeEarly access
Replica Preparation
Airsoft Masterclass
Replica Preparation
Gearbox · Precision · Machining · Assembly
9+Modules
10am+Content
From 0Level
Why trust us

Real technique, not forum theory.

Aritz has been preparing competition replicas at La Cueva for years. His knowledge comes from thousands of hours with his hands inside a gearbox, not from YouTube videos.

🔧
You opened the gearbox and got lost
Pieces everywhere, not knowing what order they go in or what each one does. Nobody really explains it to you.
📺
The tutorials don't explain why.
You see how to do it but don't understand the logic. Without fundamentals, you can't adapt what you've learned to your replica.
💸
You pay a technician and don't understand what they did
Your replica is working better, but you don't know why. You always depend on others for any adjustments.
🎯
You don't know what pieces are worth buying
The market is full of upgrades. Without technical criteria, you spend money on improvements that are useless.

This masterclass transforms years of workshop experience into structured, clear, and applicable learning from the very first module.

What you'll learn

The complete method.
Module by module.

9 structured modules covering the entire cycle: understanding each component, complete assembly, machining, and the technical extras that make the difference between a mediocre replica and a well-prepared one.

  • Understanding each component of the gearbox and exactly what it does
  • Prepare any replica following the complete method from start to finish
  • Knowing what tools to use and how to make each adjustment correctly
  • Basic Machining Applications: Milling Machine, Lathe, and Welding for Airsoft
  • Troubleshoot common issues without relying on external technicians
00
Foundations and Principles
The starting point. Everything you need to know before opening a replica.
Introduction
01
Compression
Piston, piston head, cylinder, springs, cylinder head, damper, nozzle, spring guide, and tappet.
02
Accuracy
Precision barrels, hop-up buckings, nubs, and hop-up units.
03
Traction
Gears, bearings, bushings, delayer, and anti-reversals.
04
Reaction
Motor and electronic triggers.
EXT
External Assembly
Short stroke, AOE, shimming, sealed, radius, bevel to pinion, barrel treatments and alignment.
INT
Internal Assembly
Complete internal gearbox assembly process.
05
Tools and Workspace
Essential small tools and workspace organization.
06
Machining and Welding
Milling, turning, and welding applied to airsoft.
07
Important Technical Extras
Difference between upgrade vs preparation, shooting tests, maintenance, warranties, and type of replicas.
08
Marketing
Aritz and Viru's experience. How to build authority in the sector.
09
Legal
Everything you need to know about applicable legislation.

▾ scroll para ver todos los módulos

Aritz
Aritz
Gunsmith · Trainer · Founder of La Cueva
The CaveFounder
Comp.Prepared responses
9+Recorded Modules
✓Proven method
Who teaches

Aritz.
The Cave.

Founder of La Cueva and one of the most renowned airsoft gunsmiths in Spain. Years of working on competition replicas have given him a technical mastery that few possess.

In this masterclass, he shares his complete method for the first time: from how he understands each component to how he assembles and fine-tunes a replica from start to finish.

Founder of La Cueva — a benchmark workshop in the Spanish airsoft scene
Years of experience preparing high-performance and competition replicas
Our own method, developed after thousands of hours of work in the field and workshop
Registration

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Leave your email and we'll notify you the moment the masterclass opens for enrollment. No spam. No commitments.

No spam. We'll notify you when it opens, that's it.

FAQ

Frequently asked questions.

No. The masterclass starts from the fundamentals. If you've never opened a gearbox, this is the best starting point. If you already have experience, the advanced modules will give you the understanding you're missing.
Aritz's method applies to any replica with a gearbox. Although the recording uses specific models, the principles of compression, accuracy, traction, and reaction are universal.
We are still defining the opening dates. By signing up, you'll be the first to know and will have priority access before the public announcement.
That's it. You'll receive a confirmation email, and when registration for the masterclass opens, you'll be among the first to be notified. No spam or irrelevant newsletters.
The machining module shows what's possible with the right tools. Many of the preparations Aritz teaches can be done with basic hand tools.
Don't miss it

LEARN FROM SOMEONE WHO REALLY DOES IT.

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Free registrationNo strings attachedOpening noticeEarly access