

Specna Arms Gearbox Spring Set V2 (MP122).

A metal, strengthened spring guide. Thanks to bearing, The spring is less exposed to risk of its characteristics, which encreases its life span. Meant tobe mounted in gearbox v.2 equipped with system of quick spring exchange Enter & Convert™.

Specna Arms Alu Ball Bearing Spring Guide V2/V3.


Prometheus Spring Guide Tornado Shaft V3.

Ultimate Gearbox Spring Set voor Versie 2 en 3.










