Planet Eclipse S63 Standard Barrel Back - Black DYESALE Features an efficient airflow path

Features an efficient airflow path and consistent piston movement

AccuLock Barrel Kits come protected in a semi-rigid zippered case that fits all components of the barrel kit while not in use

Full length Picatinny / 1913 top rail for mounting optics or other accessories

it comes with a stylish storage bag

Planet Eclipse S63 Standard Barrel Back - Black DYESALE Features an efficient airflow pathThe S63 is the most advanced Planet Eclipse barrel system yet! Introducing the Eclipse PWR Inserts and 3 piece construction, the S63 offers exceptional shot consistency, precision and control. This S63 barrel back is part of the S63 3 piece barrel system that is standard with the Gtek 180R and is compatible with all other parts of the S63 barrel system. S63 Barrel Back Compatibility: S63 Pro Tip S63 Tactical Adaptor S63 Tactical Extended Adaptor