1911 Government 45 Acp 5.755'' Threaded Ss Barrel

If you're building or refreshing a 1911 Government in .45 ACP, a quality barrel is the foundation of reliable feeding, accuracy, and longevity. The Nighthawk Custom 1911 Government 45 ACP 5.755" threaded stainless steel barrel is a match-grade component built for shooters who demand precision and durability. Nighthawk Custom is known for exacting standards, and this barrel reflects that commitment—machined from 416 stainless steel for corrosion resistance and dimensional consistency, with a factory-threaded design that opens the door to sound suppressors or muzzle devices without gunsmithing.

The 5.755" length is spec'd for the Government-frame 1911, and the .578x28 thread pitch is the standard for modern .45 ACP suppressors and muzzle brakes. Whether you're running a suppressed pistol for range work, building a tactical platform, or simply upgrading from a worn factory barrel, this threaded option gives you flexibility without compromising fit or function. Match-grade barrels tighten up shot groups and improve barrel-to-slide lockup, especially if your frame is in good shape.

Installation requires basic gunsmithing knowledge or a trip to a qualified smith—this is a component, not a plug-and-play swap. If you're assembling a 1911 or are familiar with disassembly and fitting, you'll appreciate the precision Nighthawk brings to every dimension. Stainless steel resists corrosion in storage and harsh conditions, a practical choice for anyone who shoots hard or keeps guns in less-than-ideal climates.

Key Features

• Match-grade 416 stainless steel construction for precision and durability
• Factory-threaded at .578x28 for .45 ACP suppressors and muzzle devices
• 5.755" length—Government-frame 1911 spec
• Corrosion-resistant stainless finish
• Tight dimensional tolerances for superior lockup

Specifications

Frequently Asked Questions

Will this barrel fit my 1911?

This barrel is chambered and dimensioned for the Government-frame 1911 in .45 ACP. If you have a Government-model 1911 (not Officer's or Commander), this barrel is designed to fit. Proper installation requires fitting to your specific frame and slide—we recommend having a gunsmith handle the swap if you're not experienced with 1911 work.

What suppressors will work with the .578x28 threads?

The .578x28 thread pitch is the industry standard for .45 ACP suppressors and muzzle devices. Most modern .45 ACP cans will thread on this barrel. Always verify your suppressor specs before purchase.

What's included?

You receive the barrel only. Installation hardware, link pins, or other components are not included.

Why choose a stainless steel barrel over parkerized or blued?

416 stainless steel resists rust and corrosion, making it a low-maintenance choice for shooters in humid climates, those who clean and store guns long-term, or anyone shooting suppressed (where moisture can be a factor). It's also more forgiving if you're not religious about immediate cleaning after range sessions.