LN MK3 Upgrade Parts

This 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