These are the stubby stocks with the rear trapdoor.
For KRYTAC, you will need an RPS Perfect Fit Plate and Custom Screw.
For the KWA 2.5 Variant, you will need a custom variation of this stock, an RPS Custom Fit Adapter, and a Custom Screw.
Airstrike Airsoft Stubby Stock For M4 AEG.
Tags: Airstrike Airsoft Stubby 10x13x0