MODULAR.  ADAPTABLE.  TOUGHER THAN NAILS.


Every firearm we make is built to perform in the hardest combat environment. Delivering rugged, professional tools to support the success of your mission is what matters. Everything else is a gimmick.

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FT-15 Multiple Caliber PackagesWar Lock Multiple Caliber System

FT-15 Multiple Caliber Packages

$2,679.50$3,560.50

***A Federal Firearms License (FFL) is required to purchase this item.***

The FT-15 packages include all the barrels, bolt carrier groups and magazines with the rifle that are necessary to switch between the included calibers.  We’ve included black Magpul MOE furniture, low profile gas block, and mil-spec parts.  Our upper receivers come from the factory with enlarged ejection ports for future use of big bore cartridges (.450 Bushmaster, .458 SOCOM, .50 Beowulf).  Our FT-15 was designed with the capability to quickly retrofit with the War Lock™ Multiple Caliber System.

Our FT-15 comes with the Frontier Tactical™ War Lock™ Multiple Caliber System installed from the factory.  No additional assembly is required.

Every AR-15 is capable of becoming a multiple caliber platform.  For that reason, every AR pistol and rifle we sell comes from the factory with three important multiple caliber upgrades:

  • The lower receiver is marked “MULTI CAL” for all AR-15 cartridges.
  • Our upper receivers come from the factory with enlarged ejection ports for future use of big bore cartridges (.450 Bushmaster, .458 SOCOM, .50 Beowulf).
  • Our lower receivers come with a Wolff Extra Power Hammer Spring installed for harder military primers (e.g., 5.45x39mm, 7.62x39mm, etc).

Please select your package and handguard preferences.

FT-15 FS 2FT-15 FS 2

FT-15

$1,137.50$2,018.50

***A Federal Firearms License (FFL) is required to purchase this item.***

The FT-15 comes standard with a 16″ 5.56/.223 barrel, with 1/8 twist and A2 compensator.  We’ve included black Magpul MOE furniture, low profile gas block, and mil-spec parts.  Our FT-15 was designed with the capability to quickly retrofit with the War Lock™ Multiple Caliber System.

Our FT-15 comes with the Frontier Tactical™ War Lock™ Multiple Caliber System installed from the factory.  No additional assembly is required.

Every AR-15 is capable of becoming a multiple caliber platform.  For that reason, every AR pistol and rifle we sell comes from the factory with three important multiple caliber upgrades:

  • The lower receiver is marked “MULTI CAL” for all AR-15 cartridges.
  • Our upper receivers come from the factory with enlarged ejection ports for future use of big bore cartridges (.450 Bushmaster, .458 SOCOM, .50 Beowulf).
  • Our lower receivers come with a Wolff Extra Power Hammer Spring installed for harder military primers (e.g., 5.45x39mm, 7.62x39mm, etc).

Please select your caliber, stock and handguard preferences.

FTP-15 WLLTFTP-15 WLLT 2

FTP-15

$1,137.50$1,978.50

***A Federal Firearms License (FFL) is required to purchase this item.***

The Frontier Tactical™ FTP-15 comes standard with a 10.5″ 5.56/.223 barrel, with 1/7 twist and A2 compensator.  We’ve included black Magpul MOE furniture (not shown – pistol grip), low profile gas block, and mil-spec parts. Our upper receivers come from the factory with enlarged ejection ports for future use of big bore cartridges (.450 Bushmaster, .458 SOCOM, .50 Beowulf).

Every AR-15 is capable of becoming a multiple caliber platform.  For that reason, every AR pistol and rifle we sell comes from the factory with three important multiple caliber upgrades:

  • The lower receiver is marked “MULTI CAL” for all AR-15 cartridges.
  • Our upper receivers come from the factory with enlarged ejection ports for future use of big bore cartridges (.450 Bushmaster, .458 SOCOM, .50 Beowulf).
  • Our lower receivers come with a Wolff Extra Power Hammer Spring installed for harder military primers (e.g., 5.45x39mm, 7.62x39mm, etc).

Please select your caliber, stock and handguard preferences.

FT-15 Complete Lower Receiver - MFT-15 Complete Lower Receiver - M

FT-15 Complete Lower Receiver

$329.00

***A Federal Firearms License (FFL) is required to purchase this item.***

Frontier Tactical Complete Open Trigger Assembled Lower Receiver. This includes an installed Lower Parts Kit and Magpul, 6 position Butt Stock assembly, lower receiver extension, buffer, buffer spring and Magpul Pistol grip. This complete lower receiver is marked “MULTI CAL” and is a semi-auto AR-15.

Every AR-15 is capable of becoming a multiple caliber platform.  For that reason, every AR complete lower receiver we sell comes from the factory with two important multiple caliber upgrades:

  • The lower receiver is marked “MULTI CAL” for all AR-15 cartridges.
  • Our lower receivers come with a Wolff Extra Power Hammer Spring installed for harder military primers (e.g., 5.45x39mm, 7.62x39mm, etc).

FFL REQUIRED for purchase, send copy of FFL to sales@frontiertactical.com

FT-15 Stripped Lower ReceiverFT-15 Stripped Lower Receiver

FT-15 Stripped Lower Receiver

$160.00

FT-15 Stripped Lower Receiver

FT-15 Stripped Lower Receiver

***A Federal Firearms License (FFL) is required to purchase this item.***

Frontier Tactical Complete Open Trigger Stripped Lower Receiver. This complete lower receiver is marked “MULTI CAL” and is a semi-auto, AR-15 stripped lower receiver.  Perfect for out-of-the-box true multiple caliber AR-15 builds.

FFL REQUIRED for purchase, send copy of FFL to sales@frontiertactical.com

Our FT-15 Stripped Lower Receiver is manufactured in the U.S.A. to the highest standards and closest tolerances.  Our goal is to provide the market with a rugged, hard use AR-15 that anyone can depend on.  Don’t settle for low quality components when building your firearm.

Made from a military grade, high-strength, 7075 T6 aluminum forging for reliable performance and world class durability. Mil-Spec, Type III Hardcoat Anodized finish adds extra strength to the receiver walls and delivers superior abrasion-resistance for rugged field use. Precision machined to ensure drop-in installation of Mil-Spec, aftermarket components.

Every step to the manufacturing process of our FT-15 Stripped Lower Receiver was chosen specifically by military veterans to ensure it stands up to the harsh field use of warriors, hunters and shooters in any environmental conditions.  We manufacture our own receivers in house from quality forgings, to ensure tight tolerances and superior quality.

Made in the U.S.A.