The B5 Systems SIERRA K Stock delivers enhanced cheek weld and shoulder support for AR-15 and M4 pattern carbines.
- Type: Fixed Carbine Stock
- Compatible Firearms: AR-15, M4 (Mil-Spec Carbine Buffer Tube)
- Material: Reinforced Polymer
- Finish: Black
- Adjustable: No
- Installation: Slides onto mil-spec carbine buffer tube, secured with buffer tube castle nut
