I was wondering if anyone knows who makes stripped uppers that can be used for LRHO? my KE9 lower doesn't have it

"The KE-9 DOES NOT have Last Round Bolt Hold Open (LRBHO) unless you use an upper with a linkage system built in to accommodate it. The AR15 magazine catch can be used to manually lock the bolt back, but Glock magazine followers DO NOT interface with it. To have LRBHO you muse use an upper with a linkage system that interfaces with the Glock magazine follower and standard bolt catch. Some manufacturers of 9mm uppers produce uppers with this feature."

Joe Bob's sells their Spartan 9mm Stripped upper with LRBHO for Glock Magazine lowers, (These uppers are actually New Frontier Armory Uppers), Joe Bob's sells them for $119.95. Mine works great and the LRBHO is simple and reliable.

This.




_

The joebob spartan upper i have work fine on 9mm and 45.  Only complaint is they have some stupid "Molon Labe" on the side of them fairly large.  It was not in the images or description.

doubletap

I literally just today built this combo (KE9 + Spartan) not fire tested yet, and it does look like the mechanism probably needs
a tiny bit of tuning but it appears to mostly work, so I'd +1 on the spartan from joebob.

They also have one with side charging.... that is the upgrade I'm saving for - LRBHO+side charging :)