DSI Spare Roll Pin Kit2 of each commonly used AR-15 roll pins: Charging Handle Latch (1/16'' x .267'') Forward Assist (3/32'' x 5/8'') Micro Gas Block (5/64'' x 5/16'') Rail Gas Block (5/64'' x 3/8'') Trigger Guard (1/8'' x 5/8'') Bolt Catch (3/32'' x 1/2'')
