Grizzly Lab super light outer barrel for m4 electric gun (9 inches)

New qualtiy model made of CNC aluminum and fiber glass fabric
special construction process to save wieght......(51g only)
ideal installation with floating rail/handguard front set
14mm negative pitch for flash hider or silencer
compatible with Marui, g&p, g&g, dytac m16/m4 rifle series

Attention! The barrel needs a inner barrel with minimun length of 229mm