HK VP9, VP9SK, VP9L & VP40 Slide Milling Service from CHPWS 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 Click here to browse all of our Red Dot Adapter Plates. Click here to browse all of our Slide Milling Services.