The manufacturer does not state if the True Precision Pistol Sig P365 XL Barrel can handle +P ammo. I recommend contacting True Precision in regards to that information.
Yes, the True Precision Pistol Sig P365 XL Barrel is compatible with the P365-XMacro Tacops pistol.
The True Precision Pistol Sig P365 XL Barrel, Threaded will work with a P365X Macro.
The True Precision Pistol Sig P365 XL Barrel is 4.35" in length from breech to muzzle.
This True Precision Pistol Sig P365 XL Barrel is threaded to except a compensator, as long as the threads match.
No, The manufacture doesn't recommend using this barrel unless it is the Sig P365 XL.
There is no "best" as it completely depends on what you want out of the holster. You need to determine what type of holster you are personally interested in and how you specifically are going to carry the handgun. Some people prefer appendix carry, some prefer small of the back, some prefer strongside IWB, and others prefer other methods, so it is up to you to determine what's "best" for you.
Either of the black models will be the closest with the grey being next. I would think the DLC is probably the closest because of its almost greyer shade of black.
Yes, the thread protector is meant to be kept on the end of the barrel in all instances of use. The only time the thread protector should be removed would be to clean the end of the barrel or to install a muzzle device (suppressor, compensator) to the threads.
Yes, but please be aware that this is meant for a P365 XL which means the barrel is going to be around half an inch longer than it needs to be. The barrel length on a P365 is approximately 3.1 inches while the barrel length for the P365 XL is approximately 3.7 inches long.