Overview Reviews Product Description Details: Stock Bolt Manifold for the Proto Rail (PMR O-rings Included and Installed Includes set screws to secure back cap Ready to Install Good condition Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Proto Matrix - Rail Bolt Manifold Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments