The 6.8 SPC, also known as the 6.8mm Remington SPC, is an intermediate rifle round designed to outperform the 5.56. The 6.8 SPC delivers 44% more power than the 5.56 on average. It is a popular hunting caliber for small/medium sized game. Pro2a Tactical offers a unique line of 6.8 SPC II AR-15 Rifles - all made in the USA, assembled by experienced armorers and gone through rigorous testing to ensure quality and performance. Shop today and save!