Does anyone here know what the thread is on the Sonic BM2K feed neck??

[HellSpawn]

Does anyone here know what the thread is on the Sonic BM2K feed neck??
Is it ICD spec's or did Mac do there own thread?

[skip]

There was a thread on this a while ago i think it is ICD spec standard for all B2k2, BKO's and Defiants. Mac Dev sell low rise and high rise feed tubes lok here (http://http://www.macdev.net/au/icdupgrades.htm)