Our True Bolt Action Uppers are designed and intended to feed from standard AR style magazines.
For our UPR10 series of uppers and rifles, we recommend Magpul LR/SR 308 magazines for all calibers offered.
For our UPR15 series of uppers and rifles our recommendations depend on caliber.
For our 6 ARC and 6.5 Grendel, we recommend the Amend 2 , 6.5 Grendel magazine. The Amend 2 mags are the smoothest feeding and most reliable mags that we have tested to date for 6.5 Grendel and 6 ARC.
For 224 Valkyrie, we recommend the CProducts Duramags in 6.8 SPC.
For 223 Wylde and 300 Blackout nearly any brand will work. We run and recommend Magpul Pmags.
All of these mags are available through us by going to Shop>Magazines.
No, but you can if you want to. We would suggest you try running it with and without and determine which you like better.
Yes! We offer left handed versions for both the UPR15 and the UPR10. We don’t have a mark up…just because you use the wrong hand!! Cost is the same 😉
Our UPR-10 uppers are DPMS GEN 1 LR-308 pattern and are compatible with any other lower of that spec.
To see a list of known compatible and non compatible UPR-10 lowers, click on Shop>Guns>UPR10>scroll down to just below the add to cart button>click the Lower compatibility tab.
Our UPR-15 uppers are compatible with any “Mil-spec” lower receiver.
We no longer sell upper receiver sets. We only sell complete uppers or rifles.
No, they are not. Although our barrels attach like an AR barrel, they are not AR barrels. There is no gas hole and we use a Proprietary Barrel Extension nut with our uppers to accommodate our 3 lug bolt.
Subscribe our Newsletter Now !