- NO-M.A.R® polymer pic rail vise clamp with not scratch delicate metal finishes
- Firmly grip your Pic / Weaver / Scope / Quad rail with your bench vise
- Fantastic for holding receivers upside down or securing multi piece quad rails for assembly
- Easily line up your free float fore arm with your receiver rail during barrel installation
- Makes co-witnessing your free float fore arm to your receiver easier than ever!