Experience unparalleled stability and safety with the Tiger Rock Inc. 223/5.56 Rifle Upper & Lower Vise Block Combo. Engineered for precision, this vise block is ideal for AR15 and M16 platforms, allowing you to work on your firearm with confidence and ease. Crafted from heavy-duty polymer, this tool is solvent resistant, ensuring durability and protection during maintenance without risking damage or scratching. Safe & non-damaging clamping Solvent resistant for long-lasting use Designed specifically for AR15 / M16 platforms Constructed from heavy duty polymer for maximum strength Elevate your gunsmithing experience with a vise block that prioritizes safety and performance.