Direct Drop-In Threaded Barrels for FN Reflex & FN Reflex XL

This is a direct drop-in threaded barrel for the FN Reflex and FN Reflex XL, built for shooters who need suppressor or compensator compatibility without the gunsmithing. The factory barrel lacks threading, limiting muzzle device options; this component solves that by replacing the OEM barrel with a drop-in fit that requires no fitting or modification to the slide or frame. The result is a reliable, repeatable mounting platform for a suppressor, compensator, or thread protector, with a consistent ½-28 thread pattern that matches standard 9mm muzzle devices.

Platform Compatibility

• FN Reflex (9mm)
• FN Reflex XL (9mm)
• Direct drop-in fit for factory slides – no barrel fitting, no extractor adjustment
• Not compatible with non-Reflex FN pistols (e.g., 509, 502, FNS series)

Key Specifications & Features

• Construction: Heat-treated stainless steel hammer-forged blanks – consistent bore, minimal runout, long service life. 100% manufactured in Phoenix, AZ.
• Finish: Black Melonite – corrosion-resistant, reduces surface friction, maintains dimensional stability under heat.
• Threading: ½-28 pattern, .680” of threaded length protruding past the factory slide (Reflex and Reflex XL). Accepts most standard 9mm suppressors and compensators.
• Dimensions: Reflex barrel OAL ~3.98”; Reflex XL barrel OAL ~4.48”. Chambered 9mm, 1:10 twist rate.
• Drop-In Fit: No hand-fitting, no file work, no headspace gauges required. Install as a direct replacement for the factory barrel.

Install Difficulty

Difficulty: 2/5 – Basic field strip competence required. Tools needed: punch (for slide takedown), non-marring hammer (if tight fit on locking lug), thread locker (for muzzle devices). No barrel fitting tools, no barrel vise, no timing fixtures. Expect 5–10 minutes if familiar with FN Reflex disassembly.

Frequently Asked Questions

Will this barrel work with my factory recoil spring?

Yes. The barrel maintains OEM outer diameter and locking lug geometry. Factory recoil spring assemblies for FN Reflex and Reflex XL function normally with this barrel, including suppressed use. No spring weight change is required for standard suppressors.

Do I need to change the extractor or ejector?

No. The barrel’s chamber dimensions and feed ramp angle match factory FN specs. Extractors and ejectors should remain stock. If you experience extraction issues, first verify the barrel is fully seated and the locking block is clean.

Can I use this barrel with a compensator?

Yes, provided the compensator is ½-28 threaded and does not exceed the barrel’s .680” thread shoulder length. Ensure the compensator is timed to avoid contacting the slide or frame. Use a crush washer or shims as needed. Do not use a compensator that relies on set screws to index against the slide face.

Shipping & Warranty

This barrel ships from Phoenix, AZ. Not available for sale or shipment to CA, CT, DE, Washington DC, HI, IL, NJ, NY, or WA. Check your local and state laws before ordering. Includes manufacturer’s warranty against defects in material and workmanship; warranty details included in packaging. Standard lead times apply for threaded barrels – allow 5–7 business days for processing.