Yes, they should be compatible.
feeding problems so far . Can run 30 rounds no problem and bam round gets stuck in the chamber . I thing upper and lower need to be from the same company .I thing the mag gets to high in the receiver . Bolt runs to close to the mag lips .If you push the mag up little the bolt is touching the magazine. Work in progress. Contacted Fm mike ,nice people but no help with this problem. Contacted cmmg and their suggestion is to buy their mkgs lower but it cost 375$