One of the issues with using quick disconnects (QD) is the extra bulk they add to the high pressure hose to spray gun connection. In order to keep the hose from binding under pressure, I've found that a swivel is needed. It's the same Mosmatic gun you're used to but what makes this one special are these new T304 stainless fittings that are developed by Mosmatic and manufactured to high precision in Europe. The bulk of the QD/swivel combo forced me to test many different combinations to come to this solution.
This has been a year in the making. I approached Mosmatic to see if we could create the ultimate OG spec spray gun. The biggest difference between the original and OG Spec gun is the integrated swivel and plug which takes about an inch off of the inlet. The outlet is Swiss made T304 coupler.
This will be shipped with all quick disconnects installed. Coupler to connect the 3/8" plug on the gun to your hose is not included. The only thing you will need to do is connect a M22 adapter to your pressure washer hose outlet.
If you have a M22 14MM hose (Like the Kranzle 1122TST hose) you can use this matching Mosmatic M22 adapter.
If you have a Kobrajet or 3/8" MNPT hose, you need this Mosmatic 3/8" Female Coupler.