The Fortis QD End Plate and Castle Nut combo upgrades the rear of an AR buffer tube. The castle nut is machined from billet aluminum to save weight and fits mil-spec buffer tubes. The end plate adds a quick-detach sling swivel socket and is designed for carbine-style buffer tubes on AR-15 and .308 platforms.
- Fits: Carbine buffer tubes, AR-15 and AR-308
- Includes: QD end plate and castle nut
- Material: 6061 aluminum
- Finish: Black mil-spec anodized
- Quick-detach sling socket
- Made in the USA
- MPN: QD END-CN-COMBO