I have Hyve +2 extensions (black) on all my 8 rd mags (4). No they are not cheap...but are quality made and perform flawlessly. Never had an issue with them. They fit nicely with the contour of the gun. They add quite a bit of length to the gun so they are my carry mags...my 7 is in the gun with a Stryker Industries +2 EMP. I wrapped all my Hyve's with custom cut grip tape...mainly to help protect them from ejecting from the gun and letting them fall to a hard surface. $30 bucks a piece, but 10 is better than 8. I carry 50 rounds of 147 gr Critical Defense on me.