Geissele Automatics Freedom Rifle (GFR) Maritime Assaulter 6mm ARC AR-15 Rifle - 16" - DDC

Manufactured by Geissele Automatics
SKU: 05-1521S
MPN: 05-1521S
Manufactured by Geissele Automatics
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Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal-Firearm License holder.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to



Introducing the GFR 6MM ARC Recce Rifle in DDC finish, a cutting-edge firearm exclusively crafted by Geissele Automatics. Engineered from scratch, the GFR represents the pinnacle of AR15 evolution.

Featuring a 16” Chrome-lined barrel, precision machined, and cold hammer forged for consistency and quality, the GFR Recce delivers superior performance. High-Pressure Testing (HPT) and Magnetic Particle Inspection (MPI) ensure unmatched accuracy and reliability, making it ideal for duty, competition, and beyond.


  • DDC Anodized finish
  • GFR Lower Receiver
  • GFR Upper Receiver W/ Enhanced Cam Race
  • GFR Bolt Carrier Group w/ 6MM ARC Bolt
  • 15” MK16 Center Tab (DDC)
  • GFR-E Standard M4 Bow Trigger
  • 16.25” 6MM ARC Cold Hammer Forged Chamberless barrel
  • Rifle Length gas system
  • Antistrike super Compact Gas Block
  • Geissele Super Charging Handle
  • HUX WRX Flash Hider QD-6
  • Super Configurable Safety Selector
  • Premium Mil-Spec 6 position Buffer Tube
  • Super-42 w/ H2 Buffer
  • Geissele BF Buttstock
  • Geissele A17 Reduced Angle Grip

The Anti-Strike Super Compact Gas Block provides increased rail clearance, prolonging rail lifespan by preventing contact during drops.

Equipped with the exclusive GFR-E trigger, the rifle guarantees a smooth first stage and crisp break, even under heavy use. Nanoweapon Coating enhances corrosion resistance, ensuring reliable operation.

The heart of the GFR lies in the Nanoweapon Coated 6MM ARC Reliability Enhanced Bolt Carrier Group (REBCG), offering increased corrosion resistance and optimized cartridge feeding. Forged from Carpenter 158+ steel, the bolt ensures durability and reliability under pressure.

Improvements extend to the upper receiver, with heat-treated steel cam races and a forward assist relocated for enhanced operation. The GFR Recce includes a HUXWRX Flash Hider-QD 6MM ARC suppressor-ready muzzle device for versatility.

Featuring the renowned MK16 Super Modular Rail, the GFR ensures secure accessory mounting. Precision-machined lower receivers offer enhanced stability and compatibility with Geissele magazines.

Completing the package is the Geissele BF stock, featuring four QD sling swivel sockets and a shrouded adjustment trigger for optimal comfort and functionality.

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Barrel CoatingSalt Bath Nitride
Barrel ContourMedium
Barrel Length16
Barrel LiningChrome
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandGeissele Automatics
Caliber Gauge6mm ARC
ColorFlat Dark Earth
FinishHardcoat Anodized
Gas System LengthRifle
Gas System TypeDirect Impingement
Handguard15 in M-LOK Rail
Magazine Capacity10
Muzzle DeviceHUXWRX QD-6 Flash Hider
Thread Pattern5/8 X 24
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

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