0101silent wrote:I appreciate the responses.

twodollarbill: Thanks for posting your build. I've probably looked at your build thread about 50 times over the last few months. It is extremely helpful because it gives details of how you ported the barrel and the velocities of different cartridges because I don't have a chronograph.

Design #1 is how I imagine Elite Iron and TBA Suppressors build their Integrals. The design isn't ideal in my mind but they have satisfied customers and there must be a compelling reason they build integrals that way.

Design #2 seemed like the obvious best choice. Like fishman said, less parts, easy to disassemble, easy to make.

The excellent design that Capt. Link kindly suggested wouldn't be much more work than #2.

Expert Advice or Keep it Simple? It should be an easy choice but I am conflicted. I nearly started machining both #2 and #3 before posting and asking for advice. Either way I will follow Capt. Links advice and move the ports closer to the chamber. I will have to purchase a chronograph.

Is the barrel in Design #2 strong enough that it doesn't require tension? Does the expansion chamber have enough volume to make it quiet with a 6" to 7" tube?

By the way I carefully measured my safe and if I lay the pistol horizontally I have a maximum tube length of 6.25", diagonally 7 1/8".

Capt. Link. wrote:Integrals are my thing but not the most easy to do.A 6.00 tube is ambitious but doable.

A .500 long breech section of barrel is turned and threaded for suppression tube support.
Turn the barrel to .375 ,thread & crown the muzzle.
Make a threaded muzzle cap that is a tight slip fit into the suppression tube.
Fit a sub sized tube between the muzzle cap and the breech section.
The barrel is held under tension between barrel shoulder and muzzle cap to maximize accuracy.The muzzle cap also supports the tube so must be cut with great care.

Small barrel ports close to the chamber are best, use a chronograph for best results.The coaxial tube is ported to balance gas flow between ports made fore and aft on that tube.

Use CCI mini mags and adjust ports to 900-950fps.Add coaxial tube and barrel muzzle cap,then suppression tube.Go to range with your choice of ammo and tighten muzzle cap until groups are smallest.A torque wrench can be used for reassembly once proper tension is found.

That should get you started on the right path w/ this build.

-CL