Upriver Precision Arms

Upriver Precision Arms Welcome to the UpRiver Precision Arms page! We build custom precision rifles. We also make custom muzzle breaks and barrel threading.

It is my pleasure to introduce THE TWINS! Up first we have a 7mm SAUM built on a Defiance Machine anTI-x with a 24 inch...
03/26/2022

It is my pleasure to introduce THE TWINS! Up first we have a 7mm SAUM built on a Defiance Machine anTI-x with a 24 inch Benchmark Sendero light carbon barrel. Krick Composites built and hand fitted the vertical ADL stock to perfectly fit the action and barrel contour for a very tight fitting yet still free floating barrel.
Next up with have the 300 PRC on the anTi action. This rifle sports a 26" Sendero carbon barrel from Benchmark. A Krick Composites vertical BDL stock fitted on this one. Both rifles get the Trigger Tech Special and our in house "Magnum" muzzle brake. Both rifles also tip the scale between 7 and 8 pounds minus optics.

The 224 Grendel ready for deer season.77gr lrx Barnes going 3154 with a SD of 6. It's dialed and ready to go!! I'm going...
11/02/2021

The 224 Grendel ready for deer season.
77gr lrx Barnes going 3154 with a SD of 6. It's dialed and ready to go!! I'm going to try to get it on video.

10/06/2021

From another Happy Customer:

This is my very first custom rifle and who better than my friends at Upriver Precision to help me out. It’s a Re*****on 700 action re chambered in 300 prc. It’s got a sweet carbon fiber barrel from the boys at International Barrels. The chassis is a MDT LSS-XL and the custom cerakote was done by me, probably the best I’ve done so far! Hunting season is right around the corner and I can’t wait to put it to work!

Gen 2 Ultimatum Precision Deadline actions. We are dealers for Ultimatum and we will also be stocking some long actions ...
06/12/2021

Gen 2 Ultimatum Precision Deadline actions. We are dealers for Ultimatum and we will also be stocking some long actions soon! 60 degree bolt throw, 3 lug, dual ejectors, built like a tank and smooth like a Cadillac, if you haven't checked out Ultimatum Precision yet, you should. If you are interested in a new build, give us a call and let's see what we can do for you.

The 300 PRC has been gaining popularity at an astounding rate. With performance on the heels of the mighty ultra mag an...
04/02/2021

The 300 PRC has been gaining popularity at an astounding rate. With performance on the heels of the mighty ultra mag and reasonably priced factory ammo options, it is a great cartridge for everything from big game hunting to ELR competition. We built this rifle off a Defiance Tenacity long action and fitted it with an International Barrels Inc. UPA profile tube (designed to be a target/hunting hybrid profile). Sitting in a Masterpiece Arms Ultralight chassis and topped with an Athlon Ares BTR Gen 2, this rifle tips the scale at 11 pounds and has some serious capability in both hunting and target scenes. If you like what you see give us a call to discuss your next build, or just give us a like and a share.

Here at Upriver Precision, we have been having a "blast" experimenting with the 224 Grendel cartridge on a few different...
03/26/2021

Here at Upriver Precision, we have been having a "blast" experimenting with the 224 Grendel cartridge on a few different rifles. We built this rifle on a Bighorn TL3 action with a Benchmark Barrel. With the MDT ACC chassis, triggertech diamond, and finished off with our self timing "magnum" brake, this rifle is headed to he competition circuit. If you have any questions about this rifle or the 224 Grendel cartridge, feel free to get ahold of us. As always, help us get out there with a like, comment and share.

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Here at UPA, we love our 7mm's. This 28 Nosler is no different. Built on a Defiance Tenacity and fitted with a Proof c...
03/06/2021

Here at UPA, we love our 7mm's. This 28 Nosler is no different. Built on a Defiance Tenacity and fitted with a Proof carbon barrel, it is sure to make most any shot with ease. The stock was fitted by Krick Composites and the rifle sports our Magnum muzzle brake to keep the recoil in mild and the muzzle flat. Not too heavy, but can still be at home on the range.
Don't forget to give us a like and a share to help us beat the algorithms.

03/05/2021

ULTIMATUM PRECISION DEADLINE ACTIONS ARE AGAIN AVAILABLE TO ORDER!!!
Give us a call if you are interested in ordering one.

Introducing the Star Valley Backpacker! This 280 Ackley is built on a left handed Defiance An-Ti long action with a Ben...
02/27/2021

Introducing the Star Valley Backpacker! This 280 Ackley is built on a left handed Defiance An-Ti long action with a Benchmark pencil barrel. A Krick Composites sock perfectly fit to the action and barrel shank bedded ensures rigidity and consistency. This rifle without optic weighs in at a feathery 5 pounds 4 ounces and still prints just over 1/2 moa! A great option for backcountry hunting, give us a call to discuss your build.
As always, give this a like and a share to help us combat facebook throttling.

New products from the shop! We now offer our Magnum brake with the convenience of self timing. Made to order, give us ...
02/19/2021

New products from the shop! We now offer our Magnum brake with the convenience of self timing. Made to order, give us a call for pricing and lead time. We still offer all of our custom fit brakes as well. Give us a like and a share to help beat facebook's throttling.

01/01/2021

Happy 2021!
Be safe and enjoy the weekend!

12/26/2020

From all of us at Upriver Precision Arms,
MERRY CHRISTMAS and a happy new year!

Address

375 River Street
Santa, ID
83866

Opening Hours

Monday 5pm - 7:30pm
Tuesday 5pm - 7:30pm
Wednesday 5pm - 7:30pm
Thursday 5pm - 7:30pm
Friday 5pm - 7:30pm
Saturday 9am - 5pm
Sunday 9am - 5pm

Telephone

(208) 245-5784

Website

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