I'm thinking about getting a gas piston system retro fitted to my 7.62x39 Colt. I do own AK-47s including a very nice Norinco with miller receiver, and I own several AR-15s in a variety of calibers and configurations. I understand and appreciate the strengths of each platform.
Reading about piston system recommendations on the forum, I'm currently considering the Adam Arms kit but open to other suggestions. On adamsarms.net, they indicate:
"Currently our system will function with the 5.45x39, the 5.56/.223, the 6.5 Grendel, and the 6.8 SPC without any special modifications needed. "
I just emailed them regarding compatibility with 7.62x39. While waiting for their reply, please let me know what you think. I welcome more feedback on the AA kit and any other suggestion. Thanks.