LN MK3 Upgrade Parts Type:12kg spring the famous airsoft company create

the famous airsoft company create a new version of the SCAR

Brand: action union

Streamline design

Please remove the battery ASAP after it is fully charged

LN MK3 Upgrade Parts Type:12kg spring the famous airsoft company createThis upgrade spring and barrel can fit for both LN mk3 and dart zone pro series mk2 nerf gun blaster. Material: copper for the barrel. Piano wire for the spring. Spring power: 12kg. Barrel length: 83mm; 105mm; 120mm; 140mm. Inner dia: 13mm. Outer dia: 16mm. Package: 1x mk2 barrel. or 1x dart zone mk2 spring. Note: the inner dia of two outlet parts need to be widened to 16mm for installing the extension barrel