Yes, it should.
Yes, the Strike Industries Strike Selector Switch will work with an AR chambered in 50 Beowulf.
The selector barrel has detent grooves on both the right and left end. One end for 60 and the other for 90. You can swap the throw of the levers by flipping the selector barrel during installation.
Yes. The Strike Industries Strike Selector Switch should work in the PSA KS-47.
Yes this product will for your AR-15.
Yes as long as your firearm is a AR-10 or an AR-15
Yes, it should function properly. There should be plenty of space between the safety and the Kingpin, and the Strike Selector can be orientated for short or long lever toward the rear if you have a preference. It's totally user configurable. Check out the photo in this link as a reference.
https://armaglock.com/wp-content/uploads/2018/09/Kingpin7.jpg
Yes, this safety selector will work with an M5 lower receiver.
According to Strike Industries.
Compatible With:
AR-10, LR-308
AR-15
This selector will for any mil-spec lower receiver.
This selector should not interfere with the PDW brace from Strike Industries.