5KU STI Aluminium Magwell - Black slow-mover The Full Auto Only brand

The Full Auto Only brand have been around since 2020

Ergonomic Bulge and Straight versions available (Images dictate the type)

Lower Piston Frame Screw - Part Number: H51-16

20mm Picatinny railed receiver - Ready for a red dot sight or scope

It has been proven to work with almost any standard V2 gearbox and AR replica on the market

5KU STI Aluminium Magwell - Black slow-mover The Full Auto Only brandThe 5KU Magwell is a must have for all the competition shooters out there that uses the Tokyo Marui Hi Capa series, no matter it's 4. 3 or 5. 1 this would fit your standard grip and improves the entry angle of your magazine, making it a breeze to reload. *Only fits Tokyo Marui Hi Capa 4. 3 and 5. 1 series with original grips.