Colt Sportsline M4 URX4 10.75" | Rifle | AEG (automatic electric gun) | Cybergun / S&T Airsoft

Colt Sportsline M4 URX4 10.75" AEG – Cybergun / S&T Airsoft

The Colt Sportsline M4 URX4 10.75" is an electric airsoft replica built on the trusted M4/AR15 platform, constructed from a combination of materials — polymer and metal — in black. Featuring an official Colt licence, complete with laser-engraved markings, and an integrated MOSFET, quality and out-of-the-box readiness come together right here.

Experience & handling – Colt Sportsline M4 URX4 10.75" AEG

With a length of 81.5 cm, this replica falls into the all-round format: comfortable to handle at both indoor and outdoor locations. The weight is 2.18 kg, making it relatively light for a full-featured AEG (automatic electric gun) on the M4 platform. The adjustable 6-position SOPMOD-style stock allows the replica to be quickly fitted to your body size and equipment. Thanks to the available rails, it can easily be fitted with optics or other accessories. As an AEG (automatic electric gun), you need not worry about gas or cold temperatures: simply connect a battery and you are ready to go. One point to note: cleaning the barrel regularly after a game day keeps accuracy consistent and prevents unnecessary wear.

What makes the Colt Sportsline M4 URX4 10.75" special?

The heart of this replica is the S&T Gen 3 gearbox with microswitch trigger, upgraded steel gears, a full steel rack piston, and an aluminium cylinder. The Quick-Change Spring system (QD) allows spring replacement without full disassembly, which is convenient when you want to adjust the power setting. The inline MOSFET provides protection against battery over-discharge, and the magnetic sensor trigger delivers a noticeably faster trigger response. The URX4 M-LOK handguard offers a full-length Picatinny top rail and M-LOK slots on the sides, including three M-LOK rail segments. QD sling swivel mounts on both sides of the handguard and stock make attaching a sling straightforward.

Technical specifications & performance – Colt Sportsline M4 URX4 10.75" AEG

The replica delivers a muzzle energy of 1.49 joules and a velocity of 400 FPS. The barrel length is 300 mm and the thread direction for a suppressor is 14 mm CCW (left-hand thread). The magazine capacity is 300 BBs and the included high-cap airsoft magazine is compatible with M4/M16-series AEG (automatic electric gun) magazines from comparable brands. As a battery, you can use an 11.1V LiPo or a 9.6V Ni-MH, connected via a Deans connector. The hop-up is adjustable, as are the bucking and nub. A practical maintenance tip: remove the battery after every game day and clean the barrel with a pull-through cord and alcohol to remove dirt and debris and maintain accuracy. View all details in the 'specifications' tab.

Who is this model suitable for?

The Colt M4 URX4 is at home at both indoor and outdoor locations, with an effective range at medium distances well suited to all-round field play. It is suitable as a first serious setup as well as an upgrade for an experienced player looking for a reliable and customisable platform. As an AEG (automatic electric gun), it runs on a battery, making it a hassle-free choice for long skirmish days: no fuss with gas, just a fresh battery and you are ready.

Ready to add the Colt Sportsline M4 URX4 10.75" to your loadout?