Your Browser is OutdatedWill the New Frontier C45 lower work with the CMMG radial delay blowback bolt carrier group and 16" barrel. — 5 Answers
No, these only work with the CMMG MkG Lowers due to the ejector being built into the bolt face.
yes, but you'll have to remove the ejector from the lower.
The mag goes too far into the bcg and catches the bolt when recoiling. You have to modify to position the mag lower in the mag well. The mag has to have the tip shaved down a little. The mag release has to be shaved down some and the ejector has to be modified as a mag stop to take the play out of the mag so it doesn't catch the bcg on it's way forward (if you rest the gun on the mag). I was able to make it work. I even used a side charging upper by getting their modified cam bolt pin and cutting down the gas key to get it in. Good luck!
Yes, if you remove the ejector from the lower. Two Allen screws.
YES, these WILL work, just unscrew and remove the ejector from the lower and it will work just the same as a CMMG