V-Block Cap Screws are used to secure the barrel to the receiver using a V-Block for 10/22 and similar firearms. V-Block Cap Screws are available in your choice of blue steel or stainless steel to best match your firearm and application. V-Block Cap Screws can be used with factory V-blocks as well as our OFFSET V-BLOCK or ADJUSTABLE V-BLOCK, each of which are designed to eliminate barrel droop when the barrel is torqued to the receiver with the cap screws. Cap Screws are sold per pair (each receiver requires one pair of cap screws).