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Sionics Weapon Systems Patrol III XL 5.56 Medium AR-15 Complete Upper Receiver 15" Rail - 16"

Manufactured by Sionics Weapon Systems
Manufactured by Sionics Weapon Systems
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The Sionics Weapon Systems Patrol III XL AR-15 Complete Upper Receiver features a 16" barrel chambered in 5.56 NATO with a 1:8 twist rate and Mid-Length gas system. The barrel is machined from 41V50 steel, magnetic particle inspected, and features a lightweight profile. The 15" Sionics free-float handguard features M-LOK attachment slots and a full-length Picatinny top rail. The upper receiver is made from 7075-T6 aluminum forgings and hardcoat anodized.

  • Premium-grade upper receiver
  • 16" 5.56 NATO barrel
  • Medium profile
  • 41V50 Chrome Moly Vanadium Steel
  • Mid-Length gas system
  • 15" free float M-LOK handguard
  • 7075-T6 aluminum forged receiver
  • MBUS Pro Front & Rear Sights
  • A2 flash hider
  • 8620 M16 BCG
The Premium Upper Receiver features extremely tight machining tolerances. These improved tolerances allow for tighter barrel fit and improved accuracy. Another improvement is the Midnight Type III Class II hardcoat finish. Each receiver is precision cut from 7075-T6 aluminum to provide the optimal balance of weight and strength you can depend on.

A SIONICS Weapon System is a firearm that is more than just built from the ground up by master gunsmiths for professionals in the field. They're more than just an assembly of quality components. Every firearm built by SIONICS has been carefully crafted from the best components available by a single master gunsmith before a second master gunsmith puts it through a 19-point quality inspection and test firing process to ensure that ever SIONICS firearm has been built without compromise.
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AssemblyComplete Assemblies
Barrel CoatingSalt Bath Nitride
Barrel ContourMedium
Barrel Length16
Barrel LiningSalt Bath Nitride
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandSionics Weapon Systems
Gas System LengthMid-Length
Gas System TypeDirect Impingement
Muzzle DeviceA2 Flash Hider
Thread Pattern1/2 X 28
Twist Rate1:8

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