The super durable, chemical-resistant upper support module allows you to hold your firearm securely for cleaning, assembly, and repair. This support module slides easily and fits tightly into its corresponding Sylvan Arms cleaning plate thereby safeguarding against finish and structural damage that may be brought on by the application of vise pressure such as scratches, dents, twists, and other structural distortions. FEATURES & BENEFITS * Perfect for cleaning, service, and weapon assembly Lets you secure your firearm into the support cleaning plate for whatever gunsmithing work you need to do. The upper support module allows you to work safely on your firearm free from worries about vise pressure damage. * Works with Upper receivers This upper support module can handle your upper receivers by wrapping around the receiver. It can fit either a carry handle or a flat-top receiver. * Solvent-resistant polymer construction This upper support module is durable and highly resistant to chemicals including gun solvents and cleaners. SPECIFICATIONS * High-end Poly-carbonate construction * 5.56/223 Upper Receiver Support Module * Lightweight yet durable