R-10 Walhalla Upper Receiver Group

R-10 Walhalla Upper Receiver Group

As of 5/17/2022: There has been a delay in the delivery of the handguard extrusions.  We are now expecting delivery in the first half of June.  This means that orders with Handguards should start shipping sometime from late June to early July, depending on when in June we receive the extrusions. We apologize for this getting pushed back further.  

As of 2/24/2022: We are all out of metal to make Handguards.  More material is on order and should be delivered to us within 2 months. Rifle, Upper Receiver Group and Handguard orders from the end of February on should start shipping in May.

The R-10 is the first in a new generation of AR-style Upper Receiver Groups (URG). Utilizing unique magnesium alloys, this URG sheds weight without compromising integrity. Chambered in 6.5 Creedmoor, the R-10 Walhalla URG weighs less than many AR-15 URGs. Built from the ground up, focusing on hunters’ needs, the R-10 does not compromise accuracy or durability while weighing 5.1 lbs. Designed to be compatible with SR25/DPMS Lower Receivers, the R-10 comes standard with a Cerakote® finish, and premium components such as the JP High Pressure Bolt Carrier Group and Radian® ambidextrous charging handle. Whether it’s a day at the range or a once in a lifetime bull Elk hunting trip, the R-10 will let you travel light and roam far™.

About This Product



5.1 Lb.


6.5 Creedmoor


Flat Dark Earth


Carbon Fiber Wrapped 20" Barrel, 1:8 Twist


JP High Pressure Full Mass Bolt Carrier

Gas System

Rifle +2, Direct Impingement

Gas Block

.875" Adjustable, Bleed Off, 30 Position


17" M-LOK® Split Picatinny

Muzzle Device

Titanium Thread Protector. Thread Type: 5/8-24

Charging Handle

Radian Raptor Ambidextrous

Overall Length

29 1/8"




  • UPPER RECEIVER: DPMS GEN 1 Compatible, Low Profile. CNC Machined Roam Magnesium, Protected by TAGNITE, Finished with Cerakote. Features Dust Cover and Molded Brass Deflector. Forward Assist is Optional
    • JP Full Mass High Pressure Steel Bolt Carrier Group, QPQ Black Nitride Finish
      • 9310 Tool Steel Bolt, Stainless Steel Full Mass Bolt Carrier, Forward Assist Serrations, QPQ Black Nitride Finish
  • CHARGING HANDLE: Radian Ambidextrous Raptor-LT 7.62 Charging Handle, 7075 Aluminum, Type III Hard Anodize
  • BARREL: PROOF Research Carbon Fiber Wrapped Heavy Profile 20″ Barrel, Chambered in 6.5 Creedmoor, 1:8 Twist, 4 Groove Cut Rifling, 416R Stainless, Lapped Barrel Bore
  • GAS SYSTEM: Rifle +2 Length, Direct Impingement
  • GAS BLOCK: Superlative Arms Adjustable .875″ ID, 30 Position, Patented Bleed Off Mechanism, Low Profile, Melonite Finish
  • MUZZLE DEVICE: Titanium Muzzle Protector. Thread Type: 5/8-24
  • HANDGUARD: Free Floating 17” Roam Magnesium Split M1913 Rail, M-LOK, Two QD Sling Mounts, Protected by TAGNITE, Finished with Cerakote