Maximize your rifle's versatility with the MDT folding stock adapters, designed for better storage, transport and a wider range of buttstock options. These adapters are compatible with most bolt-action chassis rifles featuring an AR-style interface. The 1-way lock ensures stable, straight line alignment during shooting, while the 2-way lock keeps the stock firmly secured in its folded position when not in use. The folding stock adapter increases the length of pull by 1.75 inches This adapter features a robust interface that prevents the passage of a bolt This is not compatible with the TAC21 chassis, nor with the ESS or ACC chassis, despite the ESS