R-10 Uppers

R-10 Walhalla Upper Receiver Group


R-10 Walhalla Upper Receiver Group


Low Profile Picatinny

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 4.8 lbs with a low mass steel BCG or 5.1 lbs with a full mass steel BCG. 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



4.9 Lb. with No Forward Assist and Low Mass Steel BCG
5.1 Lb. with Forward Assist and Full Mass Steel BCG


6.5 Creedmoor


Flat Dark Earth


Carbon Fiber Wrapped 20" Barrel, 1:8 Twist


JP High Pressure Full Mass Bolt Carrier
JP High Pressure Low 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
    • Forward Assist BCG: JP Full Mass High Pressure Steel BCG, QPQ Black Nitride Finish
      • 9310 Tool Steel Bolt, Stainless Steel Full Mass Bolt Carrier, Forward Assist Serrations, QPQ Black Nitride Finish
    • Smooth Sided BCG: JP Low Mass High Pressure Steel BCG, QPQ Black Nitride Finish
      • 9310 Tool Steel Bolt, Stainless Steel Full Mass Bolt Carrier, 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