* 12/8/2025 - WE ARE NO LONGER OFFERING SERVICES TO CALIFORNIA SHIPPING ADDRESSES *

Inline Ports - VP9

Inline Ports - VP9

Regular price $150.00 Sale

This is a slide milling service. We do not provide or sell slides. You ship your slide and barrel to us, and we do the work and ship it back. WE DO NOT SELL FIREARMS OR FIREARM PARTS.

Inline porting for the H&K VP9 9mm. You can choose your number of ports. Our testing has shown that 7 and 8 ports on the VP9 can be hit and miss and very ammo dependent on cycling correctly. Usually that issue can be fixed with aftermarket guide rods and springs but there aren't that many options available for the VP9. This service includes machining of the slide top window and barrel ports. Side serration windows are a separate service. Please read ALL of the below information. *THIS SERVICE IS FOR 9MM MODELS ONLY*

Cerakote is not included. The machined areas will be bare metal. Some scratches and/or surface marks can occur during the machining process. See below to add cerakote. Cerakote is for the slide only. We do not add any coating to the machined barrel surfaces.

Add Cerakote: Single Color
                         2 Color Battleworn
                         2 Color Distressed
                         3 Color Camo

Add Slide Disassembly / Assembly

Videos: 
HK VP9 Port Testing 4 vs 6 vs 8

VP9 Port Testing Revisited

VP9 Port Testing - Velocity Data

Shipping: Shipping Instructions – JW Machining & Design LLC

 * Important: Porting can change how the firearm functions. We try to test with multiple types of ammunition, but your results may vary from ours. You might find it runs well with certain types of ammo and not so well with others. You might have to change out the recoil spring. Because of all the variables involved we cannot guarantee 100% reliability. Porting redirects/vents gasses out of the top of the barrel/slide. These gasses are hot!! Use with caution & follow all firearm safety rules. *