Colonel Mustard aluminum alloy castle nut for attaching AR buffer tubes - ideal for AR builds or for adding a buttstock to your Matador Arms Sabertooth!
This castle nut fits both milspec and commercial spec buffer tubes.
Weight: 6g - a third of the weight of a steel castle nut!
Model: Colonel Mustard CMCNA
Please note: We cheated and used the same pic as for the steel castle nuts as they look the same. :)