Made for minors, from ages 10 and up, the Tokyo Marui BOYS M4A1 AEG gets reviewed by Mach Sakai. This is powered by AA batteries which are installed in the front by removing the upper handguard. It's not a 1:1 scale model as it is designed for younger children but can perform well for short CQB games as these are easy to use in tight corners given their compact size.

Read the full review here which is in Japanese and as always the video review below: