BCM's steel QD receiver end plate paired with the FCD CNF castle nut for a conventional staked carbine installation.

This configured pair combines BCM's steel Gunfighter QD end plate with Forward Controls Design's CNF castle nut. Both manufacturers sell their part directly, and both pieces are required for the complete receiver-extension hardware setup.
Add the BCM QD End Plate and FCD CNF Castle Nut to your build and see how it enhances your platform.