The JP Enterprise Centerless Operating Spring 308 Carbine is available at Nautilus Arms.
Custom Centerless Ground and Polished Operating Spring - Large-Frame Carbine Length - Precision centerless ground and polished operating springs offer a smoother and quieter operation in AR buffer tubes. Improved impulse feel results in faster sight recovery and improved reliability. - 9mm Carbines: This is the buffer spring we recommend for use with 9mm carbines.
Specifications
| Brand | JP Enterprise |
|---|---|
| MPN | SOSC308 |
| UPC | 812872020938 |