Silverback Pull-back conversion kit for the Silverback SRS-A1 is a reverse mechanism: with the original bolt, the main spring is compressed while you push the front the bolt. With this kit, you will compress the main spring by pulling back the bolt, like most of the spring powered airsoft bolt action rifle. The volume of air is increasing from 28 cc to 41 cc (+46%), and this huge volume of air will allow you to reach high power with easier priming of the gun. Silverback SRS Pull Bolt Ultralight Conversion Kit Full Metal Construction Make your SRS Sniper form push cocking system covert to pull-back cocking system The Spring Provided with this kit develops a muzzle energy of 1.8 joules Suitable For Silverback SRS A1 Bullpup Sniper Package Include: Modified fibred nylon buttplate spacer Steel bolt head (welded) and steel cylinder Steel spring guide Aluminium light piston with synthetic rubber damper and steel piston end Synthetic rubber dust cover filled with foam (dust protection and noise reduction) APS M140 spring (13 mm outer diameter)
