Alpha Series Rods are forged from select 4340 chromoly steel and feature a straight H - beam design, resulting in the ultimate strength - to - weight ratio. 4340 chromoly is one of the strongest materials available, however, not all 4340 chromoly is the same. As such, Skunk2 relies on extensive material testing and works closely with its foundry to produce high - quality rods at an affordable price. Comprehensive heat - treating, tempering, and shot - peening processes together ensure that each Alpha Series Rod remains consistent and strong. Finally, each rod is magna - fluxed to ensure integrity and that each process has been completed thoroughly and according to Skunk2's rigid specifications.