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.
This kit is everything you need for the rear of your AR pattern rifle to attach your 6 position stock. These Mil-spec kits include a 6 position buffer tube, castle nut, end plate, buffer and spring. Pair it with any carbine buffer tube compatible stock to complete your UPR. This kit is a wear-and-tear resistant and corrosion resilient. These are constructed from aircraft grade aluminum with rolled threading that will outlast and outperform the competition. MADE IN THE USA!
SPECS
Color: Black
Length: 7.125 in
Finish: Hard Coat Anodized
Fabric/Material: Aircraft Grade Aluminum, High Strength Steel
Features Constructed from aircraft grade aluminum with rolled threading. This assembly kit will fit on all Mil-Spec AR 15 lower receivers .A standard buffer spring and 3oz carbine buffer are included as well as a castle nut and lower receiver end plate
Standard buffer spring
3.2oz carbine buffer
6 position, Mil-spec tube
Castle Nut
End Plate
2025 Uintah Precision. All rights reserved
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