#html-body [data-pb-style=D25NX2S]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}The next-generation AR10-15 Combo Vise block comes equipped with a slot, designed specifically for our Lower Receiver Vise Block Inserts (sold separately). This indispensable tool needed for the assembly of an AR 10 /15 upper. The ODIN Works Vise Block allows you to secure your upper while you clean or install barrels, forends, muzzle devices, and any accessories you want to mount on your upper. Works with both AR10 and AR15 uppers Quick release pins Machined out of 6061 Billet Aluminum