I have zero H anything on my ARs except one, and it's an Enidine I've had for 12 years. It's not heavy but it slows the cyclic rate considerably, so it acts the same. Some of my guns have thousands of rounds on them and I use them for demos for NV stuff. Only time I've had a malfunction is when they run dry.
I do have H2s on all my SR platforms.
IMO, it doesn't matter unless you are screwing with the gas port or running HBARs in Afghanistan.
I do have H2s on all my SR platforms.
IMO, it doesn't matter unless you are screwing with the gas port or running HBARs in Afghanistan.