$1,228.99 - $1,464.99

Franklin Armory® is proud to produce 100% American made quality firearms.  The Praefector™ has everything you need, with many additional custom features ready to go right out of the box. You have the choice of either the 5.56 NATO or the hard hitting .450 Bushmaster.  It also comes equipped with the effective Revere™ Compensator and the rail system is optic ready.  We know you will appreciate this durable and efficient rifle.

The FAI™ Series receivers are forged from 7075-T6 Aluminum with a Type III Anodized Black Hard Coating.  The upper receiver features a full Picattiny Rail.  The lower receiver has a Specialized Tension Screw to eliminate upper and lower play.  


Buying a complete firearm or lower from Franklin Armory® is easy, safe, and legal. Federal law requires all firearms be shipped to a licensed dealer.

Once you have placed your order, please have your FFL dealer email us a copy of their license, include your name, and the order number you received.

Email FFL info to:


 Barrel Length + Type

 20” Medium Contour


 15" FSR™


 Optic Ready

 Charging Handle


 Bolt Carrier

 Salt Bath Nitride




 Custom Tuned Trigger


 Gas System

 Rifle Length

 Gas Block

 Low Profile

 Muzzle Device





 MOE Rifle


Ergo Ambi Sure Grip 


 5.56 NATO; .450 BM

Additional Features:

Comprehensive Safety Manual

California Certified Cable Lock

Complimentary Lockable Case



Magpul Gen 3 Pmag P30 for 5.56 NATO

450 BM uses 10 Round Stainless-Steel Magazines

10/30 or 15/30 Magazine for Restricted States

Anti-Tilt Follower



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LUKE 22:36 "But now if you have a purse, take it, and also a bag; and if you don't have a sword, sell your cloak and buy one".


⚠️WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to -