BUY ONE, GET ONE FREE – Free UP Vitrum Trigger with the purchase of an upper! That’s a $175 value!
Buy 1 UP15 lower, Get 1 Free! A $225 value!
Automatically added to your cart at checkout.
$1,050.00 – $1,400.00
We manufacture our Semi-Auto upper to include the same design elements and high-quality standards that our Bolt Action uppers have. Top tier, USA-made materials and components combine to make an AR for all scenarios; from hunting and competition to self-defense.
Our uppers feature a 6061 Billet aluminum receiver, a match grade 416R stainless steel barrel from Preferred Barrels, and a Mil-spec bolt carrier group.
We offer them in:
22 ARC , with an 18″ barrel, 1: twist and Rifle +1 gas system
6mm ARC, with an 18″ barrel, 1:7.5 twist barrel and Rifle +1 gas system
223 Wylde, with a 16″ barrel, 1:8 twist and Mid-length gas system
Rounding out our semi-auto upper is an ambidextrous charging handle and a 15” MLok handguard that ensures you have enough real estate for optics, designators, bipods, tac lights, or whatever other peripherals you want.
Just as with our Bolt Action ARs, we offer a manufacturer’s warranty and a Sub-MOA accuracy guarantee.
We accuracy test the .223 Wylde with factory Hornady Frontier 75 gr. BTHP ammunition, the 6 ARC with Factory Hornady 108gr ELD-M and 22 ARC with Factory Hornady 62gr/88gr ammunition.
100% American made with American materials.
Preferred Barrels 416R Stainless Steel; “Blackout” Cerakote
Uintah Precision profile
-22 ARC; 18″ , 1:7 twist w/ A2 flash hider (Rifle +1 gas)
-6mm ARC; 18″ , 1:7.5 twist w/ A2 flash hider (Rifle +1 gas)
-223 Wylde; 16”, 1:8 twist w/ A2 flash hider (Mid-length gas)
Uintah Precision 15” M-LOK handguard
Uintah Precision 6061 Billet Aluminum upper receiver
Ambi Charging handle
Direct impingement gas system
Mil-Spec BCG Machined from 8620 Aircraft Quality Steel and heat-treated to 60-61 RC
Mil-Spec Gas Key
Key Staked with Grade 8 Screws, per Mil-Spec
Mil-Spec Carpenter 158® Bolt w/ Spring and Ejector
Tool Steel Extractor w/ Spring and Viton O-ring
Mil-Spec Firing Pin w/ Chrome Finish
Mil-Spec Cam Pin
Full Auto Carrier (Backward compatible with all semi-auto rifles)
BCG Weight – 11.55 oz.
**This upper assembly is not a firearm, will ship directly to you and is legal to ship to any state.
|Caliber||Barrel length||twist||Barrel diameter||Muzzle threads||Weight with standard barrel||Weight with Carbon wrapped barrel||Gas system|
|223 wylde||16”||1:8||Uintah Profile||1/2×28||Mid-length|
|6mm arc||18”||1:7.5||Uintah Profile||5/8×24||Rifle +1|
|22 ARC||18”||1:7||Uintah profile||1/2X28||N/A||N/A||Rifle +1|