G36 / G36C Handguard Picatinny Weaver CNC Rails Set (Black / 2 pcs / Long)

"Incredibly rough finish, definitely recommend rail covers if you use these, unfortunately the screws it came with only fit the rear hole in the handguard, the front holes on the VFC GBB 36C are smaller. However if you want a bottom rail, these are identical, and the screw that holds on the hands stop at the front of the hand guard will fit, simply remove the hand stop, it should come apart in three pieces, the screw, the hands stop, and a little insert that's separate from the hands stop, the U-shaped end of the rail slides into this slot and can be screwed into the hand guard using the original screw right through the hand stop. The rear screw hole should fit