FAXON PRO 12.5" 6MM ARC AR15 PISTOL

Faxon
SKU:
FXPRO6A125GA1075
|
UPC:
810209950262
$1,556.00
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Current Stock:
Faxon PRO 12.5 inch 6MM ARC AR15 pistol – primary product image

FAXON PRO 12.5" 6MM ARC AR15 PISTOL

The Faxon PRO 12.5" 6MM ARC AR15 Pistol is a premium, compact long-range platform built for shooters who demand match-grade precision, superior ballistics, and a refined component stack in a maneuverable package. Part of Faxon's elevated PRO series, this pistol steps up from the Sport line with enhanced materials (like 416R stainless barrel), optimized rifling, and premium accessories for demanding applications like hunting, PRS-style shooting, or tactical use. If you've explored 6mm ARC for its flat trajectory, low recoil, and extended effective range in a short barrel, this build eliminates guesswork with in-house engineered reliability and performance tuning.

At the core is the Faxon Match Series Gunner Profile 12.5" 6MM ARC barrel—crafted from 416R stainless steel with 5R rifling, 1:7.5 twist, and nitride finish inside and out for exceptional accuracy, barrel life, and corrosion resistance. The carbine-length gas system ensures reliable cycling in a compact setup while preserving the 6mm ARC's high-velocity potential and suppressor compatibility.

Built by an American manufacturer. Faxon Firearms is a family-owned manufacturer founded in 2012 and headquartered in Greater Cincinnati, Ohio. The Faxon family’s manufacturing and engineering roots date back to 1978—producing mission-critical components for aerospace, defense, and industrial programs. That same process control and machining discipline carries directly into our firearms, barrels, receivers, and critical small parts.

Key Features

  • 12.5" 6MM ARC Match Series Gunner Profile barrel (416R stainless, 5R rifling, nitride, 1:7.5 twist)
  • Carbine-length gas system for smooth, reliable operation in short-barrel 6MM ARC configuration
  • Enhanced forged upper receiver (Faxon, with optimized feed ramps for ARC)
  • Forged lower receiver with tensioning screw for improved fit and consistency
  • Faxon Streamline 10.75" M-LOK handguard with top rail for optics, lights, and accessories
  • Faxon superfinished 6.5 Grendel/ARC BCG – Nitride (.136" bolt face for proper headspace)
  • Faxon fixed .750" low-profile gas block + carbine-length stainless gas tube
  • Faxon MuzzLok® Plan B compatible flash hider (5/8x24 threads, stainless steel, nitride finish; enables repeatable timing and direct integration with Plan B → HUB adapters for suppressors)
  • Premium pistol brace (e.g., SBA3 or equivalent for stability)
  • Includes Duramag® 10-Round

Use Cases

  • Long-range hunting: 6MM ARC's flat trajectory and energy retention shine in compact hunting setups for deer, coyote, or hogs
  • Precision / competition: match-grade barrel and low recoil ideal for PRS-lite or dynamic shooting with quick handling
  • Suppressed tactical / home defense: short barrel with excellent ballistics; carbine gas and MuzzLok® Plan B compatible muzzle aid easy suppressor attachment and tuning for quiet, low-flash operation

Who it’s for: discerning shooters wanting premium 6MM ARC performance in a compact pistol—enhanced accuracy, durability, and upgrade ecosystem (optics, suppressors, bipods).
Who it’s not for: budget-focused builds or those prioritizing maximum maneuverability in ultra-tight spaces—this PRO series emphasizes precision over minimal weight.


What’s In This Build (Bill of Materials)

  • Upper: Faxon Enhanced Forged AR15 Upper Receiver (optimized for ARC)
  • Lower: Faxon AR15 Forged Lower Receiver w/ Tensioning Screw
  • Barrel: Faxon Match Series Gunner Profile 12.5" Carbine-Length 6MM ARC AR15 Barrel (416R Stainless, 1:7.5 Twist)
  • Muzzle Device: Faxon MuzzLok® Plan B Compatible Flash Hider (5/8x24, stainless steel, nitride)
  • Handguard: Faxon Streamline Aluminum M-LOK 10.75" AR15 Handguard
  • Gas Block: Faxon Fixed .750" Low Profile Gas Block
  • Gas Tube: Faxon Carbine-Length Stainless Steel AR Gas Tube
  • BCG: Faxon Superfinished 6.5 Grendel/ARC Bolt Carrier Group – Nitride
  • Charging Handle: Faxon Edition Breek® Sledgehammer (or premium MIL-SPEC)
  • Safety: MIL-SPEC
  • Trigger: Enhanced / MIL-SPEC (PRO series upgrade potential)
  • Brace: Premium Pistol Brace (e.g., SBA3)
  • Grip: Enhanced Ergonomic Grip
  • Buffer: Carbine buffer tuned for 6MM ARC / carbine gas
  • Magazine: Duramag® 10-Round


Warranty

All Faxon Firearms products are backed by our Limited Lifetime Warranty.
For full warranty terms, service instructions, and exclusions, please visit:
https://faxonfirearms.com/warranty-privacy-terms/

FAQs

Why 6MM ARC in a 12.5" pistol?

6MM ARC delivers excellent ballistics—high velocity, flat trajectory, and retained energy—in a compact AR platform. The 12.5" length balances maneuverability with barrel efficiency for long-range capability without excessive overall length.

Is this pistol suppressor-ready for 6MM ARC?

Yes—6MM ARC is highly suppressor-friendly with low recoil and gas. The included MuzzLok® Plan B compatible flash hider supports direct-thread or quick-detach mounts via Plan B → HUB adapters; test cycling with your suppressor, ammo (supersonic/subsonic), and buffer setup for optimal performance.

What barrel is included, and why does it matter?

Faxon Match Series Gunner Profile 12.5" 6MM ARC (416R stainless, 5R rifling, nitride, 1:7.5 twist, carbine gas). 416R stainless provides superior accuracy and longevity; 5R rifling reduces fouling and improves velocity/consistency—ideal for precision in a compact build.

Is this made in the USA?

Yes. Faxon Firearms is headquartered in Greater Cincinnati, Ohio, and manufactures core components in-house under controlled processes and inspection standards.

How does the PRO series differ from Sport?

PRO series elevates with premium Match Series barrels (416R stainless, 5R rifling), enhanced BCGs, MuzzLok® Plan B compatible muzzle devices, upgraded handguards/charging handles, and refined tuning for demanding precision and reliability—step up for serious use.

What warranty applies?

All Faxon Firearms products are backed by our Limited Lifetime Warranty.
For full warranty terms, service instructions, and exclusions, please visit:
https://faxonfirearms.com/warranty-privacy-terms/

ffl-firearm:
1
Caliber:
6MM ARC