The B5 Systems SIERRA K Stock delivers stable shouldering and quick length-of-pull adjustment for AR-15 and M16 pattern rifles.
- Type: Collapsible carbine stock
- Compatible Firearms: AR-15, M16 (mil-spec buffer tube)
- Material: Reinforced polymer
- Finish: Coyote tan
- Adjustable: Yes (multiple length-of-pull positions)
- Installation: Slides onto mil-spec carbine buffer tube, requires stock lock nut removal
