Apex Tactical Specialties has released their Armorer Block for the S&W M&P and GLOCK line of pistols.
The Armorer Block is designed to secure your M&P or GLOCK handgun while you replace or remove parts. It has 2 moveable bosses that allow the frame to conform to all sizes and calibers of GLOCK and M&P handguns. The block has a series of slots that allows pins to be driven out while it holds the frame. It also has slots that allow you to anchor the base of the striker modules of the both the M&P and GLOCK for easy disassembly of the modules and a slot that can secure an M&P trigger to make trigger bar replacement easier.
I think they should change the name to the Apex Tactical Specialties Third Hand, because this is exactly what so many of us were actually wishing for when we wished for a third hand during a project.
Check out ApexTactical.com.