ZTWWorks Steel Spring Guide Base for VFC QSC Spring Guide Helmet Accessories SP223 upper receiver

SP223 upper receiver

So right out of the box

its service agent or similarly qualified persons in order to avoid a hazard

Full cycle completion on auto

this mount brings the sight plane up by 1”

ZTWWorks Steel Spring Guide Base for VFC QSC Spring Guide Helmet Accessories SP223 upper receiverThese spring guide bases are 3D printed with 60% steel and 40% bronze binder. The wings are much thicker and are shape optimized to distribute load better, these are much stronger than the original VFC zinc base which is prone to breakage under stress. These are highly recommended for VFC V2 AEGs with unsupported spring guides such as Avalon MP5, Avalon Samurai Edge, and HK416A5. Base slot is 5mm hex, with an additional slot for a large flathead.