Custom Upper Builds

All of our builds use high quality, tested, proven parts, all made in the USA. We've partnered with some of the best known brands and manufacturers in the business to bring you the latest in technology in terms of materials, machining, coatings and performance. This results in an affordable, cutting edge, weapon well suited for shooters from beginner to expert.

We specialize in lightweight, no snag, deployable builds; whether you plan on building a pistol, SBR, truck gun, hunting rifle, or just making that "ping" sound at the range.

Our core build is focused around a Faxon barrel, powered by Superlative Arms' patented gas or piston systems.

Superlative Arms’ patented system for the AR15 platform adjusts the gas flow by bleeding the gas out of the front of the block, instead of restricting the flow, like conventional adjustable blocks.  Results:

  • The pressure used in the block is reduced only to the amount required to drive the bolt carrier. The remaining gas / pressure are bled out of the block allowing the system to run much cleaner and cooler.
  • Reduction of felt recoil.
  • Patented adjustment detent is located outside of the block and therefore no contamination.
  • The gas adjustment screw does not restrict the gas flow; therefore, there is no erosion or seizing of the screw / no loss of detent due to carbon build up.  Although it is removable, we have added a safety mechanism, which stops you from unintentionally backing the screw all the way out.
  • When using sbrs and / or suppressors, the bleed off port allows the excessive pressure to be exhausted out of the block reducing blow back
  • DI builds feature the Superlative Arms, direct impingement, 30 position, forward venting, adjustable gas block.

  • Piston builds feature the Superlative Arms’, patented, 30 position, forward venting, adjustable Piston Block. Also included is the Superlative Arms’, Ion Bonded, 1-piece Carrier w/ Skis and Dimpled Key. 2 Hex Keys, and stainless piston rod.


Aero Precision, Cross Machine Tool, and 2A-Armament are some of the best known names in the business, supplying us with high quality parts. All come complete with (MPI) Bolt, BCG, and Charging Handle.


Faxon manufactures all our barrels in Cincinnati, Ohio under ISO:9001 and AS:9100, quality certifications. 

  • Barrel Material: 4150 Certified Gun Barrel Quality Steel
  • Barrel Type: Button Rifled 
  • Barrel Caliber: 5.56
  • Barrel Twist: 1:8
  • Inside Finish: QPQ Nitride
  • Outside Finish: QPQ Nitride
  • Muzzle Thread: 1/2-28 TPI (Threads Per Inch) 
  • Barrel Extension: M4 
  • Magnetic Particle Inspected!
  • 11-degree Target Crown

Whatever build you can dream of, we can build. If you don't see it here, call us and well walk you through the process of your custom AR build.