The 6-position buffer tube spring, from Tacfire, is made from the same material found in piano wire. This reduces the "twang" you hear when firing your AR. This model is designed for 223/5.56 caliber rifles.
| FireArm | No |
| Type | Part |
| Model | 6 Position |
| Size | 223 Remington/5.56 NATO |
| Finish | Black |
