-          Multiple ambidextrous sling mounting points

suitable for AKM

This is because the spring guide is not fixed in the gearbox but has will for easy removing with hex key

Otherwise there could be situation

Also compatible with other tuning setups

KWA Ronin 6 TK.45C PDW, T6 Tactical & QRF MOD Series - TBEU™ Tanker Battery Extension Laylax - Multiple ambidextrous sling mountingThe Tanker Battery Extension Unit (TBEU) is designed specifically for the KWA PDW Series used to connect a larger battery to the gun while keeping it external to the gun's body. This allows players to use higher capacity batteries for longer gameplay without compromising the aesthetics or functionality of the airsoft gun.