More questions. More answers. Read this before you order.
Customer questions keep coming — and they should. This is a precision build kit and every detail matters. Part 2 covers porting selection, post-build service options, and slide configuration so you go in with no surprises.
The Extreme 6-port is the most aggressive porting option we offer. It will dramatically reduce recoil and muzzle rise — but it comes with a tuning requirement that not every builder is ready for.
Because the ports are large, they bleed significant gas pressure on firing. This means your recoil spring weight and ammunition selection have to be matched correctly or the gun will not cycle reliably.
Too light a spring with underpowered ammunition and you will have feeding issues. Too heavy a spring with hot ammunition and you may short-stroke.
If you know how to tune a 2011 around a specific load and spring combination, the Extreme 6-port is a serious performance upgrade. If you are still learning the platform, the Performance 3-port gives you meaningful recoil reduction with more forgiving tuning requirements.
Reply to your order confirmation email and Carl will talk through your specific setup personally before the kit ships.
As of July 1, 2026, all Island Barrel Build Kits ship with the barrel flush cut and crowned from LPWS. No separate muzzle work or send-in is required — it comes ready.
Reply to your order confirmation email and Carl will get back to you directly.
No. The Island Boy Kit ships with our signature slide configuration as specified in the listing. We do not offer blank slides or custom left/right side machining on this kit.
The kit is built and priced around a single, dialed-in specification so every order goes out consistent and on schedule. Custom slide machining falls outside what this kit is set up to deliver.
Reply to your order confirmation email and Carl will walk you through exactly what is included before your kit ships.
// Orders Are Open
Orders are now placed on the individual porting listings below. Choose the configuration you want.