Arthurian Airsoft Excalibur Mark 18 M4 AEG (2023 Model)

2023 Updated – No Longer have the Spring change without removing the gearbox but can be changed with out taking the gearbox apart.

Arthurian Airsoft Excalibur Mark 18 M4 AEG (2023 Model)

The Arthurian Airsoft Excalibur Mark 18 is part of the ‘Excalibur’ range of AEGs. The range is fully constructed using metal with multiple options to change and personalise the gun. The gun is a dark bronze/grey colour and is 9.5” in length, leaving plenty of rail space for attachments. It is the ideal size for the operator ‘C Clamp.’

The rail system for the Excalibur Mark 18 is based on the Daniel Defense ‘CQBR’ and dubbed as the MK18.’ There are 22 rail slots available meaning there is more than enough space to add additional parts onto the gun. The upper receiver has the standard 20mm Picatinny rail on the top with the laser engraved ‘T’ number markings which continue onto the rail system.

The forward assist, although dummy, still moves back and forth when pressed. A nice design feature compared to some fixed, moulded forward assists. The dust cover locks into place and flips down when the charging handle is pulled, this also reveals the hop-up unit.

When the mock bolt plate comes back, it locks into place so the user can easily adjust the hop-up without having to keep pulling the charging handle back. This can be released again by pressing the bolt stop on the lower receiver. The thread on the upper receiver is the standard thread size for most rails designed for airsoft AEGs, making the customisation of the rail endless.

The Gearbox

The Excalibur Mark 18 is equipped with an impressive gearbox, made from the components vital to most mid-range AEGs. What makes the Excalibur series stand out, is that these guns come preinstalled with 8mm bearings, a 15 metal tooth piston, an enhanced tappet plate and a quick change spring gearbox.

Features

• Aluminium build with polymer stock
• Adjustable stock
• Single-point sling plate at the rear of the receiver
• 14mm CCW thread
• 20mm top rail on receiver and rail
• Fully railed receiver
• Flip-up front and rear sights
• Working bolt catch
• Comes with 300 round high-cap magazine
• Runs off a 7.4v Lipo or Li-ion
• Reinforced tappet plate
• 8mm bearings
• 15 metal-toothed piston
• Firing modes: safe/semi/full auto
• Average FPS: 335
• Length (stock collapsed): 707mm
• Length (stock extended): 788mm
• Inner barrel length:270mm