Save time & labor with the Pistol Length War Lock™ Barrel Assembly, a completely assembled and tested component ready to use with the War Lock Upper Receiver.

**Does not come with bolt or bolt carrier group**

SKU: N/A Category: Product ID: 3502


War Lock Barrel Assembly-Pistol Length

War Lock Barrel Assembly-Pistol Length. The War Lock™ forges your AR into a Multiple Caliber System.  It replaces the traditional barrel nut and enables the quick installation and removal of War Lock™ equipped barrel assemblies.  The War Lock Barrel Assembly-Pistol Length is a completely assembled and tested component ready to use with the War Lock Upper Receiver. Each Barrel Assembly is available in different gas lengths, calibers, barrel lengths, and with many different accessory combinations. Includes low profile gas block, A2 style flash suppressor and Transportation/Storage Cap. Made in the U.S.A.

**Does not come with bolt or bolt carrier group** – Available for separate purchase.

The War Lock™ is manufactured from the highest quality materials to provide the longest service life possible. We personally believe that by manufacturing high quality products any need for guarantees or warranties become largely unnecessary. It is our intent to prove that we appreciate your investment in our product. To that end, we diligently strive to provide you with solid value for your trust in us at Frontier Tactical™.

The War Lock™ has been engineered to accept most commonly available barrels, rail systems and hand-guard assemblies.  It is possible that the War Lock™ may require special fitting initially, or not be compatible with your components. As there are a multitude of manufacturers and tolerances for different AR builds, we cannot test every one.  Please feel free to check our FAQ’s.

AR-15 Complete Upper Receiver - FT

At Frontier Tactical™ we are committed to delivering the highest quality AR and tactical product innovations to you. We pledge to develop and manufacture only technologically superior solutions and promise to pioneer the evolution of firearms for generations to come.

Our mission is to provide our customers with products like no others on the market. Our goal is to forge original solutions to obstacles defined by our customers through the masterful use of technology, innovation and superior skill. We empower our customers, employees, vendors and peers through knowledge, communication and the spirit of ethical cooperation.


Additional information

Weight N/A
Dimensions N/A



Magpul, Free Float

Specifications & Notices

Fits – Mil-spec AR-15 upper receiver equipped with War Lock Multiple Caliber System.

Made in the U.S.A.

Special Notice!

Any changes made to your AR-15 require your knowledge, understanding and compliance with BATFE regulations and local/State/Federal laws. It is the purchaser/owner’s legal responsibility to comply with these laws/regulations.

Specifically, the creation of a Short Barreled Rifle (SBR), Short Barreled Shotguns (SBS), suppressed barrels, or Any Other Weapon (AOW) requires compliance with the National Firearms Act of 1934 (NFA). All NFA rules apply to these modifications. Do not assume anything. Do not break the law.

Frontier Tactical™ LLC and its employees and agents are not liable and will be held harmless from and against all liabilities, legal fees, imprisonment, damages, losses, costs, and other expenses resulting from the illegal use by any purchaser, installer or operator of a firearm with our products.


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