Airtac Shotgun Shell HPA Adapter for VFC SIG M17/M18/XCARRY

Key Features:

• Essential HPA adapter for the VFC/SIG AIR M17, M18, and XCARRY GBB pistol series.
• Shotgun Shell Feed: Converts the pistol to feed directly from standard, universally available Airsoft Shotgun Shells (high-capacity BB reservoir).
• HPA Conversion: Allows the pistol to run reliably on High-Pressure Air (HPA), eliminating cool-down, cost, and Green Gas inconsistencies.
• Easy access, yet low profile magazine release at the rear of the adapter.
• CNC Aluminium magazine baseplate with a choice of colours adding flair to your build!
• BB latch to prevent dropped BBs on reload (0 BBs are dropped when an empty shell is ejected).
• High internal volume for good FPS/PSI.
• US Style Fitting as standard. EU Fitting available
• Modular Performance: Instantly transforms the pistol into a high-capacity, high-ROF CQB primary weapon for sustained engagements.
• Competition Grade: Built by Airtac using durable SLA/SLS Nylon or CNC materials to withstand HPA pressures and competitive demands.
• Capacity Solution: Utilizes cheap, readily available shotgun shells (typically 30+ rounds each) as a cost-effective, high-volume feeding system.
• Superior Consistency: Provides maximum FPS consistency, which is vital for the high cyclic rate of GBB pistols.
• THIS ADAPTER REQUIRES DONOR FEED LIPS AND GAS ROUTER. A VALVE IS PRE FITTED.

Airline Included

The adapter comes with a 15cm airline, which can be cut down to your preferred size, and a blackened Foster 22 (US Style) connector fitted.

To finish your adapter, transfer your feed lips and gas router from your SIG gas magazine. All adapters are pressure tested before shipping. Does not require modification of your pistol, insert just like a regular magazine.

You will also be provided three feed tubes of different lengths. Sometimes, due to manufacturing tolerances of the shells, you may need to swap out the feed tube already pre-fitted to give the best feeding results.

Capacity Unlocked

For competitive players, the SIG AIR M17 and M18 GBB Pistols offer excellent mechanical realism, but their low capacity and Green Gas cool-down are major constraints. The Airtac Shotgun Shell HPA Adapter, is a specialized, revolutionary upgrade that addresses both issues, turning the SIG P320 platform into a high-volume CQB primary.

The Competitive Advantage: Shell Feed and HPA Stability

This adapter achieves two critical functions. Firstly, it allows the pistol to be powered by an external High-Pressure Air (HPA) line, which guarantees superior FPS stability and a stable power source for strong blowback and high rate of fire, entirely eliminating temperature dependency.

Secondly, it replaces the proprietary GBB magazine with a receiver designed to hold and feed from standard Airsoft Shotgun Shells. This allows players to use inexpensive, high-volume shells (typically 30+ BBs each) as fast-swapping, high-capacity magazines, drastically reducing the cost and weight of their loadout compared to expensive GBB magazines.

Precision Modular Engineering 

Built by Airtac using high-strength manufacturing techniques (such as SLA Nylon), the adapter is robust, lightweight, and engineered for a perfect, airtight seal. This structural integrity is vital for HPA pressure and for enduring the intense use.

This conversion is the mandatory upgrade for any serious competitive player seeking to utilize the powerful VFC/SIG GBB system as a primary weapon while achieving sustained, reliable, and high-volume fire.