Fits Milspec tube. -Milspec tube and castle nut included (no spring required). About the Adaptor About the AIM Tactical Adaptor Length of Pull: 10.70" to 13.95". -Aluminum tube included.
Fits Milspec tube. -Milspec tube and castle nut included (no spring required). About the Adaptor About the AIM Tactical Adaptor Length of Pull: 10.70" to 13.95". -Aluminum tube included.