Precision CNC machined hammer pawl and ratchet arm are hardened to RC 50. EDM technology is utilized for precise location of the notches for the hammer pawl and sear. Each kit has been individually tested to insure proper fit and function. Springs have been manufactured to the exact tolerances. These 3 round burst kits are US manufactured by TBA Suppressors. Money back guarantee!If your FNC has already been converted to full auto we will install the 3 round kit in your gun free of charge with your purchase in addition to return shipping and handling. We do not need the registered sear or the upper receiver installed to install your burst kit.
