Flat Spring for the Rear Sight Assembly for all model AR15's / M16's with a carry handle flip Rear Sight. This would include AR15 / M16 / M16A1 / C7 / M16A2.. as well as all Colt models using the original AR15 sight assembly ( 725, 733, etc.)
Only the Flat Spring is included here.
This is an Original Colt take-off part and may show signs of use.
Usually this part will drop in most receivers.. but occasionally some fitting may be needed to achieve the Aperture flip force resistance you prefer.
Original Colt M16 Part
Made in the USA