If having some problems for your AK47 like an iffy fire selector switch, and improved AK47 fire selector axis is available from X-Fire/PDI. Basically for the TM versions, we're not sure if this is also compatible with TM-compatible ones... "For TM AK47 or other Kit based TM AK47(these are not sured but we tried INOKATSU & successed ) We made by CS(Carbon Steel) & arranged to be smaller head than original as real one."