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!!
Please note: Gen 2 uppers are shipping now. Gen 2 lowers & complete rifles will be available April. The aesthetics have been updated from Gen 1 to Gen 2.
If you order an upper now, you will want to wait to order a lower until the Gen 2 version is available, as the aesthetics will match.
UP logo laser engraved
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.
**NOTE: These are SEMI AUTO bolts, NOT bolts for our True Bolt Action AR15
2025 Uintah Precision. All rights reserved
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