Geissele Automatics Ar-15 16'' Chf Chrome Lined Barrel 5.56Mm

The Geissele Automatics AR-15 16" CHF Chrome Lined Barrel in 5.56mm is a cold hammer-forged precision barrel built for shooters who demand reliability under hard use. Whether you're running a duty rifle, precision competition gun, or a go-to hunting platform, this barrel combines Geissele's proven manufacturing process with proven materials to deliver consistency shot after shot. Made in North Wales, PA, each barrel is precision-machined, cold hammer-forged from chrome molly steel, and subjected to High Pressure Testing (HPT) and Magnetic Particle Inspection (MPI) before it ships.

The 16" length strikes a practical balance for AR-15 builds—short enough for handling and transport, long enough to generate solid velocity and sight radius. The mid-length gas tube system works with the government profile and 1/2 x 28 threaded muzzle to give you flexibility in suppressor or muzzle device selection. The 1/7 twist rate is the standard for 5.56mm, stable across the full range of bullet weights you'll encounter in commercial and military ammunition.

Chrome lining is a time-tested choice for durability: it resists corrosion, simplifies cleaning, and extends barrel life in sustained-fire or adverse-condition shooting. The manganese phosphate finish on the exterior provides additional protection. The single dimple for gas block set screw means you can lock down your gas block without over-complicating installation.

This is a barrel for builders and upgraders who know that Geissele barrels hold their reputation. If you're replacing a worn tube, stepping up a rifle's accuracy potential, or building a new upper from the ground up, this 16" is a trusted choice across the shooting community.

Key Features

• Cold hammer-forged construction for durability and shot-to-shot consistency
• Chrome-lined bore resists corrosion and extends barrel life
• High Pressure Tested and Magnetic Particle Inspected for quality assurance
• Government profile with 1/2 x 28 muzzle threads for suppressor and muzzle device compatibility
• Mid-length gas tube system balances reliability and ergonomics
• 1/7 twist rate, ideal for 5.56mm ammunition across all common bullet weights
• Single dimple for reliable gas block set screw retention
• Made in North Wales, PA

Specifications

Frequently Asked Questions

Is this barrel compatible with standard AR-15 uppers and receivers?

Yes. This barrel features a government profile and 1/2 x 28 muzzle threads, the mil-spec standard for AR-15 uppers. The mid-length gas tube system is also standard. You'll need a mid-length gas block and tube if you're building from scratch.

What's the advantage of cold hammer forging and chrome lining?

Cold hammer forging aligns the grain structure of the steel, improving durability and accuracy potential. Chrome lining protects the bore from corrosion and speeds up cleaning—particularly valuable if you shoot in wet conditions or plan sustained fire sessions.

Will this barrel work with a suppressor?

The 1/2 x 28 threads accept any standard AR-15 suppressor or muzzle device designed for 5.56mm. You'll need to install an appropriate muzzle device or adapter.

What does the 1/7 twist rate mean for ammunition compatibility?

The 1/7 twist is the standard for 5.56mm AR-15 barrels and stabilizes the full spectrum of common 5.56 loads, from light varmint rounds to heavy match and defense ammunition.