We reserve the right to call and suggest changes or improvements to your slide milling job. Some slides can't be milled and we will send them back at no charge if we determine it can't safely be upgraded to an optics cut. Shipping Instructions for Your Slide Customization: Remove the slide from your pistol. If you selected "disassembled", remove all internals and iron sights Include a copy of your order confirmation or a note with your name, phone, email, and order number. Sending your optic is strongly recommended - it ensures perfect fitment, and we'll mount it for free. Use a sturdy box. Do NOT use envelopes. Ship your slide using any major carrier: UPS, FedEx. WE STRONGLY DISCOURAGE discourage using USPS due to lost shipments and lack of tracking. Send your package to: CHPWS - "ATTN: Slide Milling" 55 Mustang Ct. Richmond Hill GA 31324 Questions? - Call us 912-445-5803 C&H Guarantee If there is ever a problem with your pistol slide due to milling work done by us, we will do whatever we can to fix the issue, up to replacing the slide.