Luth AR Castle Nut

The carbine lock ring is a crucial component used to secure the stock of a carbine-style rifle in place. It is made from 4140 steel and designed to withstand the rigors of regular use. This lock ring is an essential part of your carbine rifle. Threaded Steel ring used to retain the carbine buffer tube to the lower receiver.

Specifications:

• Material: 4140 steel
• Finish: Maganese Phoshate