Blackcat Airsoft 30 / 120 rds M4 Magazine Inner Case Assembly Ver. 2 for Systema PTW (5pcs / Box) CATCH we recommend you get this

we recommend you get this kit and save a lot in comparison to investing in a fully finished PTW M4

NOTE: If you use CO2 as the power of your airsoft

Madbull Delta Ring Modification Kit (Re-Threading Tool/ PRO Level)

MOM LO PWR–>Low power (Below 1 sec

It is the shortest of its kind currently on the market at only 2

Blackcat Airsoft 30 / 120 rds M4 Magazine Inner Case Assembly Ver. 2 for Systema PTW (5pcs / Box) CATCH we recommend you get thisBlackcat Airsoft 30 120 rds M4 Magazine Inner Case Assembly Ver. 2 for Systema PTW (5pcs Box) This Magazine cases can Upgrade Your Magzine which you can change from 30 to 120 rounds Suitable For Systema PTW Series Airsoft Rifle Magazine