BUY ONE, GET ONE FREE – Free UP Vitrum Trigger with the purchase of an upper! That’s a $175 value! Automatically added to your cart at checkout.

Stripped lower SALE –

Gen 1 UP-15 and UP-10 lowers are on Sale!!

Close this search box.


Frequently Asked


Why place a bolt action on an AR-15 or AR-10?

To put it simply : Accuracy, Modularity, and Familiarity.

With our 3 lug bolt, you get the consistent accuracy that you expect from a bolt action while keeping all of the ergonomics, controls and components of the AR as well as the linear recoil.
If you run suppressed, you don’t have to worry about tuning buffer weights and springs, gas block issues or blow back. There is no gas system, and it all goes down the pipe, so you don’t get gassed and can stay on target. In addition, you can always throw a semi auto upper back on when you want. Essentially, you can have two guns with one lower, unlike with a traditional bolt gun…you’ve got what you’ve got.

What is the difference between a UPR and a traditional bolt action?

For the same price as a UPR, you will not find the same level of craftsmanship and precision.

Consider a traditional, custom bolt-action rifle setup. The action alone could cost around $1,000, followed by a $600 stock, $250 bottom metal, and $60-$100 magazines, which are sometimes hard to find on the shelf at your local shop. Our system eliminates many of these additional costs. You already have your stock and trigger, saving you hundreds of dollars, and our uppers feed from inexpensive, easy to acquire, AR magazines.

Furthermore, you don’t need to rely on a gunsmith to change your barrel and re-headspace it. Our barrels attach and install just like a standard AR barrel, and don’t require any specialized tools. Give us a call and we can set you up with a replacement barrel that you can install yourself.

Our bolts and head spacing tolerances are extremely tight, ensuring compatibility between every bolt and barrel. If you ever lose your bolt or encounter any issues, don’t worry; we can send you a new one, and you’ll be back at the range in no time, no gunsmithing required.

What is the Trigger Compatibility?

Click here to view the full trigger compatibility list.

What is the screw at the top of my Upper Receiver?

This adjustable, spring-loaded D-Tent is crucial for your Bolt. It serves the vital role of maintaining tension on the bolt, preventing it from flopping in and out of battery. Unlike a traditional bolt action, the UPR lacks tension from a firing pin spring, owing to its AR-15 platform.

Should I operate with a buffer and spring with a UPR?

You have the option to operate with or without the buffer and spring. At Uintah Precision, we typically operate without them, but we encourage you to conduct tests both with and without to determine which setup suits your preferences best.

Where are Uintah Precision products manufactured?

Uintah Precision is proudly manufactured in the Uintah Basin, Utah. All our products are proudly made in the USA.

What is Credova

Credova is a financing platform that enables customers to apply for and receive financing for their firearm purchases. This means that if a customer wants to buy a Uintah Precision product but lacks the full amount of money upfront, they can apply for financing through Credova. It offers the convenience of buying now and paying later, quickly and easily. Simply apply for this option during checkout.”

Do you manufacture your own action?

Yes, that’s precisely why UPR products stand out as unique. We take pride in designing, developing, and manufacturing our patented bolt actions. It is the only true 3-lug bolt action available in the world for the AR platform.

Can I purchase the bolt only without an action?

The 3-lug UP Bolt is exclusively compatible with a UPR action. If you desire to add a true bolt action to your arsenal, you must acquire either UPR upper or UPR complete rifle.

If you currently own a UPR and encounter any issues, rest assured that we can provide you with a new bolt with no gunsmithing required. Our commitment to maintaining very tight tolerances ensures that any bolt we manufacture remains compatible with any UPR upper.

Is the UPR a compliance AR-15 accessory?

Our bolt uppers boast 50-state compliance, going beyond being just a mere accessory for compliance purposes. Our authentic bolt action upper is engineered to perfectly complement your mil-spec AR15 lower. Embracing the UPR15 means elevating the accuracy of your trusted rifle. Our commitment to quality is backed by our Sub-MOA guarantee, providing you with peace of mind and exceptional performance from Uintah Precision.

What is the lead time?

Typically, our lead time is around 2 weeks. We take pride in maintaining a healthy inventory to minimize any long lead times for our valued customers. For a specific lead time, kindly refer to the product you are interested in.

How Accurate is the UPR?

Unleash the ultimate precision with our unwavering commitment – a guarantee that our rifles will achieve Sub-MOA accuracy with match-grade ammunition. Backed by our 30-day satisfaction. View the countless videos and reviews online achieving this result from the #UPR nation.

Can I use my own AR Barrel with a UPR?

No, the reason being an AR semi-automatic utilized a 9-lug bolt pattern. The UPR uses a true 3-lug bolt pattern. Therefore only use a barrel provided by Uintah Precision.

Suppose you want to switch from .308 to 6.5 Creedmoor. In that case, all you need to do is order a barrel blank from us, and you can change calibers and barrel lengths yourself without the need for professional gunsmithing.

Our bolts and head spacing tolerances are extremely tight, ensuring compatibility between every bolt and barrel. If you ever lose your bolt or encounter any issues, don’t worry; we can send you a new one, and you’ll be back at the range in no time, no gunsmithing required

Can I customize my order?

The short answer is a resounding yes. Currently, our focus lies in providing custom options primarily revolving around custom barrels.

For complete information on customizing your order click here.

Ammo and Accuracy

We can only guarantee Sub-MOA accuracy with the use of good quality, factory ammo. We highly recommend Hornady Match ammo.

We cannot not guarantee accuracy when using “hand-loads”…even if you’ve been reloading your entire life 😉

**Important: We advise against the use of Sellier & Bellot ammo!! DO NOT use it in your UP rifle or upper! We have found it to be dangerously inconsistent in regards to powder charges, with more than one instance of uppers being damaged/destroyed. We will not warranty any upper that is damaged from the use of handloads and/or Sellier & Bellot ammunition.