CYMA Retractable Battery Storage Stock for M4 / M16 Series Rifles – Simple Airsoft
Dave's Custom Airsoft LTD - Magpul Style CTR Stock With Machined Out Battery Storage Butt Pad (Black / Tan) Fits Next Gen AEGs www.davescustomairsoft.co.uk/CTRbatterypad The Magpul CTR is a drop-in replacement buttstock
Airsoft Evike.com - Who's got a stubby stock? This throwback stock is compact, lightweight, and has awesome battery storage? Matrix Sportsline M4 RIS Airsoft AEG comes kitted with the awesome G2 Micro-Switch
PTS EPF Vertical Foregrip With AEG Battery Storage | Battery storage, Aeg, Storage
SOLD m4 stock w/ large battery storage | HopUp Airsoft
Specwarfare Airsoft. TMC CV Battery Storage (CB)
Airsoft PEQ-15 Battery storage Box 20mm Mount - DK Armaments