So I purchased 4 XCR-M pistol mags and they will not work in my Stag 10. The magazine catch won’t hold. I measured the diameter, and the XCR mags are about 20/1000” narrower. Anybody else encounter this?
Yes.
Get the TNA Norgon style magazine catch. It protrudes a little further and holds the XCR mags snug. At least mine does and also stays clear of my Phase 5 bolt release. I got this one....
https://truenortharms.com/ar15_default_store_view/ambi-mag-release-w-maple-leaf-v2-0.html




























