Geissele Freedom Maritime Reconnaissance 6mm ARC 16" - AR-15 Rifle

Manufactured by Geissele Automatics
SKU: 08-653B
MPN: 08-653B
Manufactured by Geissele Automatics
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$3,000.00

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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 ffl@primaryarms.com.

Details

Details

When 5.56 runs out of steam, the Geissele Freedom Maritime Reconnaissance 6mm ARC 16" keeps going. Chambered in 6mm ARC, it pushes the AR-15 platform to genuine long-range capability without leaving the familiar lower receiver behind.

A semi-automatic AR-15 rifle chambered in 6mm ARC, the Geissele Freedom Maritime Reconnaissance 6mm ARC 16" combines rifle-length direct impingement operation with standard AR-15 architecture for straightforward reliability.

Ballistic Upgrade Path: 6mm ARC delivers a genuine performance step up from 5.56 in both trajectory and terminal energy — a practical choice for shooters who've found the limits of standard AR-15 cartridges.

Competition Capable: Better long-range ballistics make 6mm ARC competitive in precision rifle formats and PRS-style matches where 5.56 starts falling short beyond 300 yards.

Lower Receiver Reuse: Your existing AR-15 lower receiver works without modification. A caliber-specific upper, BCG, and magazines are all that's needed to step into this performance tier.

Practical Hunting Cartridge: 6mm ARC bridges the gap between .223 and larger hunting cartridges — enough energy for ethical deer harvest at ranges the lighter 5.56 and .223 cartridges can't match.

  • Caliber: 6mm ARC
  • Barrel Length: 16"
  • Barrel Twist: 1:7"
  • Gas System: Rifle-Length Direct Impingement
  • Handguard: 16" M-Lok Free-Float
  • Muzzle Threading: 5/8x24
  • Magazine Capacity: 30-Round
  • Finish: Type III Hardcoat Anodized
  • Origin: Made in the USA

Pairs with standard AR-15 lower receivers using a caliber-matched BCG and 6mm ARC-specific magazines. Standard AR-15 buffer systems and lower parts kits apply.

The upper and lower receivers are constructed from 7075 aluminum with a Type III Hardcoat Anodized finish — a durable combination that resists corrosion and maintains tight tolerances over an extended service life.

Built for shooters who want to push the AR-15 platform to longer distances — competitive shooting, medium game hunting, and precision training are natural roles for 6mm ARC capability.

Geissele Automatics is synonymous with precision — their Super Duty and Freedom Rifle platforms are actively used by U.S. Special Operations units and trusted by professional users worldwide. Made in the USA.

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Specifications

ActionSemi-Auto
BrandGeissele Automatics
Caliber Gauge6mm ARC
ColorBlack
FinishHardcoat Anodized
Gas System LengthRifle
Gas System TypeDirect Impingement
Handguard15 in Freefloat Rail
ModelGFR
Muzzle DeviceHUXWRX QD-6 Flash Hider
Thread Pattern5/8 X 24
Twist Rate1:7.5
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 www.P65Warnings.ca.gov.

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