Ok here is what I found out from Mega on their site. "Magazines… take your pick. Any SR25/DPMS compatible magazine such as Magpul, Knight, DPMS, CMMG, and C products. Bolts & Barrels Designed to accept any AR style .308 barrels and bolts*. This means you can use your AR10/Noveske or SR25/DPMS components. *We recommend using the same manufacture for your barrel and bolt. As always assembly should be done by a qualified gunsmith, using the proper head spacing gages."