J&E Machine Tech AR-15 Carbine Buffer Spring PS-ABT4 - Piano Steel

The J&E Machine Tech AR-15 Carbine Buffer Spring (PS-ABT4) is a direct replacement carbine-length recoil spring engineered for standard AR-15 lower receivers running a carbine buffer tube. Manufactured from piano steel, this buffer spring delivers an excellent impulse feel that promotes faster sight recovery and improved reliability across .223 Remington and 5.56x45mm NATO AR-platform rifles.

Designed as a drop-in replacement for the factory carbine buffer spring, the J&E PS-ABT4 installs behind the buffer inside the buffer tube assembly and weighs just 0.15 lb. Whether you are refreshing a worn spring on a duty carbine or maintaining a range build, this J&E Machine Tech part offers a dependable, cost-effective solution for your AR-15.