Bt-4 Combat Refurbished
RECONDITIONED (2nd Hand)
These include reconditioned valve, new sear, sear spring, ball detent, drive spring and drive spring guide.
BT-4 Specifications:
*Open Bolt
*Modular Trigger System
*Mechanical Trigger
*Semi only
*Mill Spec top and bottom rail
*Quick Release Feed Neck for Quick Cleaning
*Removable Front Fore Grip
*Ball Detent
*Bottom-line
*Tough as nails
*Air or Co2