Eliminate spring twang and smooth out your firing cycle. This premium CustomAirSeals tuning kit is precision-machined to fit standard Weihrauch mainsprings with a 14mm internal diameter (ID). It features an innovative 2-piece rear spring guide and matching front top hat, CNC-machined from high-density black Delrin. Engineered specifically for the Weihrauch HW97 and HW77, it absorbs harsh harmonic vibrations and reduces rotational recoil for tighter groups downrange.
  • Fits 14mm ID Springs: Perfect fit for standard factory mainsprings.
  • AIR RIFLE SPRING WEIHRAUCH BEEMAN SMK HW 97 77 R9 CrSi WIRE
  • 2-Piece Rear Guide: Minimises spring torque and makes installation easier.
  • Premium Black Delrin: Self-lubricating, wear-resistant, and low friction.
  • Smoother Performance: Reduces mechanical vibration and cocking effort.