Is this considered "low profile"? Will it work with the Daniel Defense RIS II m4a1 rail? it requires a low profile gas block.

On a side note any idea when the ST-T2 Heavy buffer and ST-T0 spacer will be back in stock?

Yes, it will fit. Micro Gas Blocks are low profile gas blocks that are approximately half the length of FSB's and low profile gas blocks. This means it only covers have the gas seat on the barrel. Micro's are the smallest size type you can get and work the largest number of applications.

As for the T-buffer series; current demand on lowers, uppers, and rifles is outpacing how fast they can be made. The T0 spacers will probably be caught up before the others, but I don't have a specific lead time to share on them.

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