Generic Smart Parts Ion Clamping Low Rise Feed Neck Feedneck - Black Machined From Light Weight 6061 Aluminum Adjustable Cam Locking System Fits Azodin, Smart Parts Ion, Invert Mini, Impulse, Shocker SFT, Spyder VS1, VS2, VS3, RS, RSX, Angel 1. WILL NOT FIT Ion XE, Shocker NXT, EOS