Our Mega-Coupler #MLB1/2CS can be modified to fit this light. The 1/2" CS bolt is replaced with a M12 flat head bolt with a 40mm length. Leaving approximately a 27mm protrusion. There is no extra charge for this modification. Order the #MLB1/2CS and note to change bolt to the M12 x 40mm. Under Products see Mega-Coupler with Flat Head Bolt.