spike tactical barking spider for mpx

just purchased an SAKB 900 for my Sig MPX. A friend of mine says it’s going to be the wrong one because of the thread system on the MPX said I needed a SAK B900-M. I guess the sig is 13.5X1MM LH is the MPX's thread pitch. Have you heard of this.

pm any info

There are a ton of different thread pitch adapters out there. I had to get one for a Scorpion. The cost was around $20 iirc.

I looked up your, “SAKB 900” and it appears to be 1/2x28? If that’s the case, then you have a slew of options to get you from 13.5X1 LH to 1/2x28. I ordered from the first link.

https://www.joeboboutfitters.com/Kaw-Valley-Precision-Thread-Adapter-p/kvp-adpt.htm

http://www.usmachinegun.com/proddetail.php?prod=TASIG-1228T

https://www.downrangeproductsco.com/product/metric-thread-adapter-13-5x1-left-hand-to-1-2x28-4196/

https://www.infiniteproductsolutions.com/adapters/135LH-1228-BS/