It fits 45ACP full size 5" barrel.
No, it does not need a barrel threaded at the end. "how to install 1911 full size muzzle", search this on Youtube, you find how to install it.
Yes, it fits.
No, the Presma 1911 Handgun Muzzle Brake (ASMZ15) is designed specifically for 1911-style pistols with a 5" Government-length barrel and a barrel outer diameter of .577" to .581".
The FNX-45 is a completely different design from the 1911—it uses a tilting barrel system, has a threaded barrel (on the Tactical model), and does not share the same barrel dimensions as a 1911. This means the muzzle brake will not be compatible with the FNX-45 without significant modifications, if at all.
If you're looking for a muzzle device for the FNX-45, you should look for a .578x28 threaded compensator or muzzle brake designed specifically for tilting barrel systems.
The Presma 1911 Handgun Muzzle Brake (Model MZ-11-B) is designed to fit 5" Government-length 1911 pistols with a barrel outer diameter between .577" and .581", accommodating calibers up to .45 ACP, as well as .38 and 9mm. The Colt Delta Gold Cup 10mm Auto is a 5" Government-length 1911 variant. However, the 10mm Auto caliber produces higher pressures and recoil compared to .45 ACP. While the muzzle brake may physically fit the Delta Gold Cup, its performance and durability under the increased stress of 10mm Auto are uncertain. Additionally, minor milling or modification to the lug may be required for proper installation. It's advisable to consult with a qualified gunsmith to assess compatibility and ensure safe operation before proceeding with installation.
It is only for full size 1911.
The Presma 1911 Full Size Handgun Muzzle Brake will fit and function as long as you have a 5" barrel with a barrel OD between .577in-581in.
The Presma 1911 Full Size Handgun Muzzle Brake should fit the RIA 1911 A1 Tact II.
This Presma 1911 Full Size Handgun Muzzle Brake will fit your 1911 as long as it is a 5" Government length model with a barrel outer diameter of .577" - .581".
The Presma 1911 Full Size Handgun Muzzle Brake does not require you to change any parts in order to properly install. However, tuning your handgun may be necessary by means of purchasing lighter recoil springs.