INCA - FBT Fine Ballistic Tools

INCA Arme Silencieux | Manuel technique et mode d'emploi

Systèmes de silencieux FBT INCA (HOT, AIR, ONE, TAC)
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1. introduction à la technologie des réducteurs de signature fabriqués de manière additive

The development of silencers for poing arms has undergone a significant technological transformation over the last few decades. While manufacturing has long been dominated by manufacturing processes such as turning and milling, the use of additive manufacturing - specifically the selective laser melting (SLM) of titanium pours - marks a paradigm shift in the conception of balancing systems.

The company FBT Fine Ballistic Tools GmbH is positioned at the forefront of this technological evolution with the INCA product range. This document provides comprehensive technical documentation and operating instructions for the INCA family of silencers, including the HOT, AIR, ONE and TAC series.

It is intended for professional users, armourers and sports shooters who are technically aware, as well as for shooters who require a thorough understanding of the operation, manipulation and maintenance of these complex monolithic systems. In contrast to conventional silencers, which are often composed of an external tube and an internal movable (emplacement of chicanes), the INCA systems are characterised by a monolithic construction, i.e. imprinted “in a single block”. This construction philosophy requires a reduction in manipulation, particularly in terms of maintenance, as disassembly has been abandoned in favour of maximum structural integrity and optimised internal weight geometries.

1.1 Objectif et champ d'application

The primary objective of this report is to provide instructions that comply with the standards and are focussed on safety for the use of 3D printed titanium silentware. While the traditional manuals often describe the disassembly process step by step, this document focuses on the preventive maintenance of the interfaces (filetages) and the system's balancing implications. The instructions cover the use in hunting scenarios where the “cold bore shot” (shooting with frozen canon) and weight reduction are paramount, as well as sporting and tactical use, characterised by high shooting cadences and a significant thermal load. The procedures and warnings described here apply specifically to combinations of titanium grade 5/23 materials and carbon composites, such as those used in the INCA series.

1.2 Évolution de la série INCA : Du concept à la série

The name INCA stands for a programme for the integration of point materials. Its development began with the aim of eliminating the inconveniences of classic stainless steel (high weight, sensitivity to corrosion) and aluminium (low resistance to heat, erosion). Thanks to the use of titanium in 3D printing, internal structures have been created, optimised in terms of fluid mechanics, without being limited by the constraints of CNC machining tools. This has made it possible to create a fixed material structure and a design that efficiently turbulences and refreezes the gas volume before it leaves the canon.

The family of products is divided into four specialised application areas: the robust series HOT for a maximum charge, la série légère AIR avec protection anti-mirage, la série intégrée ONE for a symbiosis esthétique avec l'arme et la série tactique TAC pour les systèmes semi-automatiques et automatiques.

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2 Références normatives et consignes de sécurité (Conformité UE)

The use of silencers is subject to strict regulations in the European Union as well as in the national legislation of the Member States. This manual is based on the directives of the European Directive 2003/10/CE concerning the protection of workers against the risks associated with noise and on the relevant laws on aerodromes.

2.1 Classification juridique et conditions d'acquisition

The silencers are, in most European jurisdictions, assimilated to the firearms for which they are intended. This means that the silencer is considered to be an essential part of the weapon. Acquisition and possession are generally subject to authorisation. In Austria and in many other countries, acquisition is authorised for holders of valid hunting permits under certain conditions.

• Transfert : When travelling within the EU, a European firearms card is required.
• Assembly : The subsequent addition of a filetage de bouche on a canon constitutes an essential modification (new passage to the centre of gravity often required).
• Restrictions de calibre : L'utilisation d'un silencieux est strictement limitée au groupe de calibres pour lequel il est homologué.

2.2 Protection of health and sound emissions

The European directive on noise defines exposure limits (max 137 dB(C)). Les silencieux INCA reduce le bruit de bouche de 29 dB à 37 dB selon le modèle et le calibre. However, the loud supersonic sound of the projectile (sonic boom) cannot be physically eliminated. The use of additional audio protection is recommended.

2.3 Règles de sécurité fondamentamentales lors de la manipulation

• État de chargement : Before any manipulation, the arm must be disconnected.
• Température : High risk of burns after firing! Le titane peut atteindre plusieurs centaines de degrés.
• Corps étrangers : Vérifier l'absence de corps étrangers ou de liquide dans le silencieux avant le tir (risque d'explosion hydraulique).

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3. description détaillée des produits de la série INCA

3.1 Série INCA HOT : La référence haute performance

Série 100% titane imprimé en 3D pour une charge maximale.

• Profile d'utilisation : Chasse en battue, ciné-tir, chasse Magnum, Long Range.
• Caractéristiques : Structure de surface spéciale pour la dissipation thermique et une prise sûre.
• Résistance : Aucun calibre ne peut surcharger la série HOT (y compris .338 Lapua Mag).

3.2 Série INCA AIR : Ultraléger et sans mirage

La réponse aux exigences de la chasse en montagne.

• Technology : Hybrid construction (Noyau Titane, Tube Carbone, Isolation Céramique).
• Effet Anti-Mirage : The enveloppe en carbone isole la chaleur, empêchant l'air chaud de monter devant la lunette.

3.3 Série INCA ONE : La solution intégrale

Silencieux intégraux enveloppant le canon.

• Concept : Utilise le volume autour du canon pour l'expansion des gaz sans augmenter excessivement la longueur totale.
• Design : Diamètre fin (31mm) permettant souvent l'utilisation de visées ouvertes.

3.4 Série INCA TAC : Efficacité tactique

Pour plateformes semi-automatiques et automatiques.

• Low Backpressure : Géométries internes minimisant le retour de gaz (“overgassing”).
• Mounting QD : Fixation rapide sur cache-flammes standardisés (ex. NATO A2).
• Matériau : Titane Grade 23 or INCONEL 718 for extreme heat resistance (tir continu).

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4. assembly and adaptor systems

4.1 Le filetage de base M22x1

Le silencieux possesses a filetage fin M22x1 uniforme à l'arrière. It is not linked to a filetage de canon unique ; only the adaptor must be changed during a change of arm.

4.2 Installation de l'adaptateur fileté

• Nettoyage : Nettoyez les filetages M22x1 et de l'adaptateur.
• Insertion : Visser à la main sans incliner (risque de grippage du titane).
• Fixation : It is recommandé de coller l'adaptateur dans le silencieux avec du Loctite 243 (bleu).
• Serrage : Couple d'environ 25-30 Nm.

4.3 Assembly sur l'arme

• On-Barrel : Vissé devant la bouche.
• Over-Barrel : Revient par-dessus le canon. The plastic guide bag on the front must have at least 0.5 mm of clearance (not for support, but for protection).

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6. maintenance and repair: the monolithic concept

Les silencieux INCA are non-démontables.

6.1 “Sans entretien” - myth and reality

The titanium does not corrode, but cleaning is necessary to maintain functionality and protect the bearing.

6.2 Procédures de nettoyage autorisées

• Alésage traversant : Tous les 200-500 coups avec une brosse nylon/bronze.
• Entretien du filetage : Nettoyer régulièrement. Utiliser exclusivement de la pâte céramique (Anti-Seize). Jamais d'huile ou de graisse (risque de cokéfaction).
• Nettoyage extérieur : Eau/savon pour Titane (HOT), chiffon humide pour Carbone (AIR/ONE).

6.3 Mesures interdites

• Pas de bains à ultrasons pour HOT/AIR/ONE (risque de dommages structurels). Authorised for TAC.
• Pas de bains chimiques (risk of retention of liquid in the pores and subsequent corrosion).
• Ne jamais tenter d'ouvrir le silencieux.

6.4 Stockage (Important !)

Dévisser le silencieux après chaque utilisation ! Humidity and the résidus form the acids that destroy the canon if the silencer is not installed. Stocker debout pour permettre l'effet cheminée.

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8 Diagnostic des erreurs (Troubleshooting)

Symptôme	Cause possible	Remède
Perte de précision (le groupement s'ouvre)	Silencieux desserré	Vérifiez la fixation (resserrer à la main).
	Adaptateur desserré	Vérifiez l'adaptateur. If necessary, recoller.
	Baffle Strike	Contrôlez l'ouverture de sortie. Si traces de contact : STOP. Vérifiez le filetage du canon.
Le silencieux ne se dévisse pas	Filetage grippé	Laissez refroidir complètement. Huile pénétrante (prudemment).
	Cokéfaction	Si huile brûlée dans le filetage : Légers coups avec maillet en caoutchouc. À l'avenir : Pâte céramique.
Mirage thermique	Série de tirs extrême	Laissez refroidir. Utilise a bande anti-mirage FBT.

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