m4 gearbox upgrade – AirsoftPRESS

May 1, 20132013, AEG, EBB AEG, Self Paced Training

2013 – Airsoft Technology Self-Paced Training Series Introduction to M4 AEG

Learn the mainstream V2 based M4 architecture This edition also covers single-shot-only modification and the new APS Hybrid gearbox. All of our hard copy books […]