Barta Bow design looks identical to the old Martin Bushmaster. I've shot the Bushmaster & it's a great bow. The Martin Bamboo Viper is a totally different design. It's designed like the Martin Vision, only 2" shorter in length. The Bamboo Viper's limbs are backed with with carbon, clear glass on belly & bamboo laminations. The Barta Bow limbs are black fiberglass over maple lams.