FinishGuy Posted December 9, 2019 Share Posted December 9, 2019 I am considering building a 9mm major open gun with a 2011 platform. Thinking of using a threaded barrel. Looking for some opinions for a comp. Link to comment Share on other sites More sharing options...
echotango Posted December 9, 2019 Share Posted December 9, 2019 (edited) This: https://www.binaryeng.com/products/cfd-titanium-compsensator https://www.shootersconnectionstore.com/Binary-Eng-CFD-Titanium-Compensator-3-Port-P4999.aspx The 2 port also works well. Edited December 9, 2019 by echotango Link to comment Share on other sites More sharing options...
zzt Posted December 9, 2019 Share Posted December 9, 2019 (edited) Eric's comp (Aircooled6racer) is also very good. It is stell, so the thermal expansion is the same as the barrel. It will come loose much less often than Al or Ti comps on a steel barrel. Edited December 9, 2019 by zzt Link to comment Share on other sites More sharing options...
Bwillis Posted December 10, 2019 Share Posted December 10, 2019 Mbx Mr softy Link to comment Share on other sites More sharing options...
schaet Posted December 10, 2019 Share Posted December 10, 2019 I use the Binary Engine 3 port on my open gun. It took a little work, but I have a load dialed in that works for me. I like it. Link to comment Share on other sites More sharing options...
Posvar Posted December 10, 2019 Share Posted December 10, 2019 MC and Binary work well. Bedell makes a good comp too Link to comment Share on other sites More sharing options...
je85 Posted December 12, 2019 Share Posted December 12, 2019 On 12/9/2019 at 5:12 PM, FinishGuy said: I am considering building a 9mm major open gun with a 2011 platform. Thinking of using a threaded barrel. Looking for some opinions for a comp. Are you going to do any poppels? If not the mbx comp works much better than the binary. If so x2 3/16 plus the binary is much better. Not sure about The mbx with popples yet, will be trying that in the future. Nose weight is very different when comparing long titanium vs long stainless if that's a concern. The binary takes more work to fit depending on barrel. .685 tap and die along with a egw align reamer. Link to comment Share on other sites More sharing options...
FinishGuy Posted December 15, 2019 Author Share Posted December 15, 2019 I should have probably explained I'm planning on taking a 9mm STI 2011 and converting to a 9mm Open gun. The 2011 has a bushing barrel so I was hoping to use the existing barrel. So.....there in lies my question, which type of comp that would work with that configuration. Thanks to everyone for your replies. Link to comment Share on other sites More sharing options...
zzt Posted December 15, 2019 Share Posted December 15, 2019 (edited) 46 minutes ago, FinishGuy said: I should have probably explained I'm planning on taking a 9mm STI 2011 and converting to a 9mm Open gun. The 2011 has a bushing barrel so I was hoping to use the existing barrel. So.....there in lies my question, which type of comp that would work with that configuration. Thanks to everyone for your replies. A cone comp can be fitted to a bushing barrel. A gunsmith threads an inch or so of the bushing barrel and put the cone comp on. If you cannot find the comp design you like, EGW sells a conversion cone. It goes on like a cone comp, but it's threaded like a bull barrel. So you can use any comp you like. You'll also have totake a little material off the front of the slide to fit the comp, unless you are willing to leave an unsightly gap between the comp and the slide. Edited December 15, 2019 by zzt Link to comment Share on other sites More sharing options...
Aircooled6racer Posted December 16, 2019 Share Posted December 16, 2019 Hello: I would suggest you rebarrel the pistol with a bull barrel. There are more options using a bull barrel comp than a cone comp. The EGW adapter works ok but you can't go back to a bushing once you thread the bushing barrel you have. I like my comp since it does not need any barrel holes and shoots softer than any of the other comps I have tried. Thanks, Eric Link to comment Share on other sites More sharing options...
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