12.5" 5.56 NATO Midlength Complete AR-15 Upper Receiver Group

Aegis Weapons
SKU:
AEG125M-NO-A2
Availability:
Build to Order - Current lead time 1-2 weeks.
$899.99
Current Stock:
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12.5” 5.56 Mid Length Barrel w/NP3 Barrel Extension

Our 12.5" Mid Length Barrel is designed with a taper profile for better balance and performance. The Chamber area has more mass to support with heat absorption during heavy fire while keeping weight centered to the AR-15. The taper leads to a light front end for better handling and a well-balanced AR-15 even when used with modern accessories such as suppressors, lights and night vision/IR devices. 

  • 5.56 NATO
  • Mid Length Gas System
  • 4150 CrMoV
  • 1/8 Twist
  • 1/2x28
  • .750 Gas Block Journal, Dimpled
  • Gas Port Tuned For Supressed or Un-Supressed with Brass Ammunition
  • QPQ Nitride Finish
  • NP3 M4 Feed Ramp Barrel Extension
  • 25.05oz

Super Duty - 5.56 Bolt Carrier Group

To improve gas efficiency, each gas key is hand flattened to true the surface. Furthermore, each carrier has a gasket hand applied between the gas key and the carrier. Gas key is torqued to spec using OCKS (Optimized Carrier Key Screw) and properly staked.

  • Full-Auto M16 profile Carrier: 8620 Steel Manganese Phosphate Finish/Hard Chrome Lined For Corrosion Resistance
  • Bolt: 158 Carpenter Steel, Shot peened, Individually high pressure/proof tested and individually magnetic particle inspected 
  • Extractor: 4340 with Sprinco 5-Coil Heavy Duty Extractor Spring
  • Ejector: S7 with Sprinco Enhanced Ejector Spring
  • Gas Key: 4130 Hand Flattened To True The Surface With OCKS(Optimized Carrier Key Screw)
  • Cam Pin: 4340 Forward Marked For Consistent Orientation To Reduce Wear And Improve Life Of Bolt
  • Firing Pin: 8640 Steel With Hard Chrome Plating

Midwest Industries 11.5" Combat Handguard

  • 6061 Type 3 Hard Coat Anodized
  • 4140 Heat Treated Barrel Nut
  • 4140 Heat Treated Torque Plate
  • Continuous MIL-STD 1913 Picatinny Top Rail
  • Two Integral Anti-Rotation QD Sling Sockets
  • Seven Side M-Lok
  • 5-Slot Polymer M-Lok rail included
  • 9.4 oz

CMT 11.5" HDM Handguard

  • 6000 Series Extruded Aluminum Type 3 Hard Coat Anodized
  • 7075 Type 3 Hard Coat Anodized Barrel Nut
  • 17-4 PH Cored Stainless Steel Rail Mounting Hardware
  • M-Lok at All 7 Flat Sides
  • 10.7 oz

Forward Controls Design 11.5" RHF

  • 6000 Series Extruded Aluminum Type 3 Hard Coat Anodized
  • 7075 Type 3 Hard Coat Anodized Barrel Nut
  • 17-4 PH Cored Stainless Steel Rail Mounting Hardware
  • Continuous MIL-STD 1913 Picatinny Top Rail
  • M-Lok at 3, 6, and 9 O'clock
  • Classic Round Shape Cooling Vents
  • 9.25 oz

5.56 Forged Upper

  • Forge Mark From US Forges
  • 7075-T6 Type 3 Hard Coat Anodized
  • M4 Feedramp

100% Made in USA

All NFA Rules and Regulations Apply

Reviews

  • 5
    Absolutely well built

    Posted by Luis sanchez on 10th Apr 2023

    Upon receiving my 12.5 upper, I realize how well constructed and put together the complete upper is. A very sturdy design with the perfect length. Couldnt ask for more!