The Vltor SP-1 Carbine Spring and Buffer Kit is an exceptional choice for replacing existing parts or for a new build of a carbine rifle. The parts are manufactured to ensure accuracy and reliability in the weapon system. This kit comes with a standard 3oz carbine buffer (3.25" OAL), standard carbine spring, Vltor lockplate, and castle nut.

Features :

• Standard carbine buffer
• Carbine length action spring
• VLTOR endplate
• Receiver locknut