Knights Armament SR-25 / Mk 11 / M110 gas block taper pin

this is the taper pin that you will need two (2) of to mount the older SR-25 gas blocks to the barrel

This is mil-spec steel taper pin for the Mk11 Mod 0, the M110, and M110 Model K, and most gas blocks that take a free floating RAS or URX, URX-II, URX-3 and URX 3.1.  KAC used a lot of unusual and non-standard parts in the building of the Mk11 and M110 sniper rifles.  Your search is over.  These are size fitted for this gas block.

Note:  Mk11, M110 and some other SR-25 gas block also require a third in, which is a coiled spring pin, here.

part number:  KM-21039