Ask the Community

Yes it can be removed/replaced. - https://www.rainierarms.com/media/product/0ca/hera-arms-cqr-buttstock-black-hera-cqr-buttstock-blk-by-hera-arms-35b.jpg

The only difference between the "normal" CQR stock and the "California" CQR stock is the addition of a "removable" machined aluminum plate which prevents your fingers from accidentally – and illegally – gripping your fingers around a pistol grip. https://www.rainierarms.com/hera-arms-cqr-buttstock-black-10699/

Yes it was made to come out for those who prefer the pistol grip.