BCA Anti Reversal Latch Compression Spring Modification Kit siegetek fits in most M4 buffer

fits in most M4 buffer tubes

-Installation and shimming of engine in gearbox

managing partner of UMAREX

Heavy Duty Nylon

BCA Anti Reversal Latch Compression Spring Modification Kit siegetek fits in most M4 bufferIn a well tuned gearbox, the gears, piston, and other main components should almost never fail. For many years however, the failure of the simple anti reversal latch spring remained a difficult issue to resolve as no matter what brand spring was used, there was always a chance of failure due to the design and cheap spring metals used by all companies. What we have done developed a modification kit for VFC V2 gearboxes (but will fit some others as