Airtac Remote Feed System (Picatinny/Light Rail Attachment): Airtac Modular System

Airtac Remote Feed System (Picatinny/Light Rail Attachment) Mag type: Airtac Modular System

Tired of cumbersome magwells sticking out directly beneath your pistol grip or gas platform? The Airtac Remote Feed System moves your M4 magazine setup forward onto your handguard's Picatinny / torch rail. By connecting a rail-mounted M4 magwell directly into your replica via a flexible Bowden feed spring, this system drastically improves rifle balance, ergonomics, and reload speed during high-intensity Speedsoft and CQB skirmishes.

Injection-moulded from indestructible polycarbonate, this system allows you to run high-capacity M4 AEG mid-caps on your HPA build without changing your preferred hand placement.

Versatile Adapter Fitment Options:

• Modular Base: Connects seamlessly to existing Airtac Modular HPA Adapters (e.g., MP7, VMP1, etc) by replacing the standard magwell.
• Shotshell Integration: Interfaces with Airtac shotshell adapters for custom shotgun platforms.
• Dedicated GBB Bases: Available with dedicated Hi-Capa or AAP-01 / Glock mag bases.

Key Features

• Rail-Mounted M4 Magwell: Mounts cleanly onto standard 20mm Picatinny or under-barrel light rails, putting reload control right in front of your support hand.
• Flexible Bowden Feed Spring: Includes a standard 250mm Bowden spring feed channel that routes BBs smoothly from the forward magwell directly into your adapter.
• Trimmable Feed Channel: The included 250mm spring can be cut down to custom lengths to perfectly match your specific rail-to-magwell setup.
• Near-Indestructible Polycarbonate Build: Heavy-duty injection-moulded magwell and CNC componentry designed to handle direct BB impacts at point-blank range.
• Minimal BB Loss: Built-in retention mechanism drops only 2–3 BBs during magazine changes.
• Custom Wobble Shims: Includes swappable rear shims to dial in a rock-solid, rattle-free lockup across various M4 magazine brands.

Technical Specifications

BZ Tech Team Advice:

Setup & Tuning Tips

• Magazine Selection: High-tension magazines like the PTS EPM1/EPM1-S are strongly recommended to ensure smooth upward feeding through the Bowden channel.
• Custom Spring Length: Measure the distance between your rail mount and receiver before trimming your 250mm spring. Always leave a gradual bend radius—over-shortening or kinking the spring will cause friction and lead to feeding jams.
• High-ROF Setup: If running a short-stroked slide or split-bolt with high rates of fire, slightly pulling the Bowden spring during the final rounds adds extra tension to push the last few BBs through smoothly.