VFC KS1/EVO Essential Upgrade Bundle CRIMSON NPAS - VFC Spec (Include 1.5mm Hex Key?):Yes + £1 I have included a tiny

I have included a tiny printed key to assist in removing the standard collar assembly

Designed to allow the full function of the Medusa principle

You'll need this to fit)

can be done with the upper receiver off

VFC KS1/EVO Essential Upgrade Bundle CRIMSON NPAS - VFC Spec (Include 1.5mm Hex Key?):Yes + £1 I have included a tinyAll the must have VFC KS1 EVO upgrades in one neat package! 10 7 26 These now include a Crimson GBB Bucking 65 Degree Finned Over 10% off buying individually! This bundle aims to maximise the performance and usability of the VFC AR EVO System by using the included parts below: BBA VFC EVO One Piece Hop Arm CRIMSON NPAS VFC Spec Waldo Dynamics Winter Hammer Spring Crimson GBB VSR Bucking 65 Degree Finned BBA VFC AR Speedloader Adapter Click each link