|From the Manufacturer:
Hera Arms CQR buttstock is designed for the civilian as well as LE/Military market to create one of the most rigid and compact Rifle Systems based on the widely available AR-15 Plattform. The CQR Riflestock is an easy-to-install replacement buttstock for Mil-Spec AR-15 Rifles using a Mil-Spec (recommended) Carbine Buffertube.
Material: Reinforced Polymer
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