Uintah Precision is the industry-leading bolt action upper receiver option for AR rifles. Our complete bolt action upper receivers are designed to work with nearly any standard AR assembly. It feeds out of your standard AR magazines, so there are no modifications necessary.

The UP-15 bolt has no firing-pin spring since it uses an AR-15 lower receiver and an AR-15 trigger. Guns & Ammo’s test rifle featured a 3-pound curved unit from Velocity Precision Engineering ($150, velocitytriggers.com).

The Uintah Precision UPR10 is a true bolt action upper for your DPMS LR-308 pattern lower or semi-auto rifle. The UPR10 brings the accuracy of a bolt action rifle to the familiar AR pattern of firearms, guaranteed to shoot 1 MOA or better with factory match ammo.

The UP-15 is a TRUE bolt action AR rifle with a 3-lug bolt and a 60° throw. Both the upper and lower are machined from 6061 billet aluminum. The flat top upper is mated to a Preferred barrels 416R stainless barrel, providing extreme precision with an easy break-in and clean up.

Sep 4, 2019 · The Uintah Precision UPR15 is a true bolt action upper for your mil-spec AR15 lower. The UPR15 brings the accuracy of a bolt action rifle to the most popular platform in the United States. Squeeze the most accuracy out of your AR, with a Uintah Precision UPR15 and our MOA guarantee.

The Uintah Precision Rifle (UPR) bolt action upper is straightforward. Simply pin onto nearly any mil-spec standard lower. And just like that, you’re primed to experience the enhanced precision that this AR platform upgrade.

AR-15. UPR-15 Upper; UP-15 Lower Receiver; UP-15 Complete Rifle; Semi automatic complete; Semi Automatic UPPER; VIEW ALL RIFLE. AR-10. UPR-10 Upper; UP-10 Lower Receiver; UP-10 Complete Rifle; gunpowder. Muzzle Loader upper; Muzzle loader complete; CANNON; Builder sets. COMING SOON; Custom Orders.

The UP-10 is a TRUE bolt action AR rifle with a 3-lug bolt and a 60° throw. Both the upper and lower are machined from 7075 billet aluminum.

Thanks to our partnership with Hornady, we will be offering both our True Bolt Action ARs and Semi Auto AR15s in the newly released 22 ARC. Designed concurrently with the same design methodology as the 6mm ARC, the 22 ARC delivers excellent and …

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.