The GM Sniper Custom is one of the High-Performance variation of the GM. The Sniper Custom is one of the few machines produced in response to vocal complaint of different disgruntled skilled pilots looking for the development of high-end MS. The GM Sniper Custom is a regular GM but customized for sniping, as shown in the picture. It is considered a personal favorite support MS of those who favor wandering snipers. It is also the only support GM with access to the Double Beam Gun, which is one of the EFF's more stronger beam weaponary. However, due to the high bounty on the MS, The GM Sniper Custom should only be used cautiously. As Zeon's Melee Type MS are always ready to pick off an easy target.