Castellan MK18 Crane Battery Stock for M4 / M16 AEG Rifles - Black

Give your rifle a classic SOPMOD-inspired upgrade with the Castellan MK18 Crane Battery Stock. Built from durable nylon polymer, this adjustable stock combines lightweight construction with excellent strength, making it an ideal replacement for worn factory stocks or the finishing touch on a custom M4 build. Designed around the popular Crane-style profile, it provides a comfortable cheek weld while offering generous internal battery storage for rear-wired AEGs.

Unlike standard carbine stocks, the MK18 Crane Stock features dual side battery compartments that are designed to house nunchuck-style batteries, helping maximize battery capacity without sacrificing balance or handling. Its ergonomic shape and multiple locking positions allow you to quickly adjust the length of pull to accommodate different shooting positions, gear setups, or player preferences.

Compatible with most standard M4 and M16-style AEG buffer tubes, the Castellan MK18 Crane Stock is an excellent choice for CQB carbines, field rifles, and MK18-inspired builds. Whether you're replacing a damaged stock or upgrading the look and functionality of your rifle, this stock delivers dependable performance at an outstanding value.

Features

• Classic MK18 / SOPMOD-style Crane stock design
• Constructed from durable reinforced nylon polymer
• Lightweight design improves rifle balance and handling
• Compatible with most standard M4/M16 AEG buffer tubes
• Dual side battery compartments accommodate nunchuck-style batteries
• Comfortable cheek weld for improved shooting stability
• Multiple adjustment positions for customized length of pull
• Large adjustment lever allows quick stock positioning
• Ideal for rear-wired AEG rifles
• Perfect upgrade for MK18, M4, M16, and other AR-platform airsoft rifles
• Black finish complements virtually any rifle build

Specifications

Length: 205mm (collapsed)
Weight: Approximately 285g
Material: Reinforced nylon polymer
Color: Black
Compatibility: Standard M4 / M16 AEG buffer tubes (rear-wired)
Battery Compatibility: Nunchuck / Crane-style batteries
Manufacturer: Castellan