This is my firt time conducting business with Arm or Ally and I'm very satisfied with the overall experience. Now, let me talk about their product. I was very reluctant in purchasing thier Glock 17 slide and I wasn't expecting much. Because of the slide's price point I bit the bullet and placed my order. Upon the arrival of my slide, I was surprised and impressed with the overall quality of the AoA Duty Glock 17 Gen 3 slide w/ RMR cut. The slide's craftsmanship was top notch. This slide accepted all its internal parts without issues, every component fit like a glove. Literally the best bang for your buck if you're in the market for an optic cut slide for your Glock... Next, live fire functionality test update review. Thank you, Arm or Ally!