Prometheus EG Stainless Steel 6.03mm Inner Barrel (141mm - 550mm) pd-precision-dynamic Plug&Play: All you need to

Plug&Play: All you need to do is connect the system between the battery and the rifle

version of the EVO 3 A1

Functions: Momentary-On & Contstant-On Powered by 2*CR123A(3

Patent Pending auto puncturing mechanism provides consistent reliable puncture and eliminates seal damage

or if just one is being upgraded

Prometheus EG Stainless Steel 6.03mm Inner Barrel (141mm - 550mm) pd-precision-dynamic Plug&Play: All you need toPrometheus is a high end brand manufacturer of aftermarket parts with a special focus on enhanced performance. Their inner barrels are well established as being a top tier choice for tight bore inner barrels. With an inner diameter of 6. 03mm, it is a tighter fit on ammo then most stock varieties (which are in the 6. 05+ range mostly) but still not as tight as 02 or 01 barrels making them easier to work with. 6. 03mm is generally considered the sweet