Delta Armory M4 Charlie Eagle KeyMod 10" Airsoft Rifle — Tan — Black

The Charlie Eagle is a carbine-format airsoft gun with an overall length of 785 to 865 mm and a 370 mm inner barrel, built around a KeyMod rail system that keeps the handguard lightweight and lets you add accessories exactly where needed. Weighing 2,250 g and finished in the two-tone Half-Tan colour scheme, it is aimed at dynamic airsoft and milsim players looking for a compact, ready-to-use AR-15 platform.

The version 2 gearbox is fitted with the QSC system and features 14 piston teeth, 7 mm metal bearings and a metal spring guide: together they deliver consistent power transfer cycle after cycle, with a muzzle velocity of 115 m/s. The T-Dean connector reduces internal resistance compared to standard Tamiya connectors, resulting in sharper trigger response — particularly when the battery is running low. Power comes from a stick battery in the buffer tube — not included — and the T-Dean wiring requires an adapter if you use a battery with a different connector.

The 120-round plastic mid-cap magazine is Delta Armory's chosen compromise between capacity and noise: it has no winding wheel like hi-caps, so it produces no rattling during movement, but it empties faster than a hi-cap and needs more frequent reloads in longer games. The integrated hop-up system is compatible with BBs from 0.25 to 0.28 g — the recommended weight for balancing range and trajectory stability. The barrel thread is 14 mm negative (CCW), compatible with the vast majority of suppressors and tracers on the market.

Key features

• Adjustable length from 785 to 865 mm lets you fit the airsoft gun to your build and kit without swapping parts.
• The KeyMod system on the 10" handguard lets you mount torches, grips, bipods and additional rails only where needed, keeping overall weight down.
• The V2 QSC gearbox with 7 mm metal bearings and metal spring guide delivers smoother power transfer and longer-lasting internals compared to plastic-bearing versions.
• The T-Dean connector comes fitted as standard: if you already use this standard you need no rewiring; if you are coming from Tamiya you will need an adapter.
• The 120-round mid-cap magazine eliminates the winding noise of hi-cap models — a real advantage in milsim scenarios where operational silence matters.
• The 14 mm CCW thread gives compatibility with standard suppressors and tracers on the airsoft market without additional adapters.

In the box

• Delta Armory M4 Charlie Eagle KeyMod 10" airsoft gun in Half-Tan finish
• 120-round mid-cap magazine