Alexander Arms .50 Beowulf AR-15 Upper Receiver Kit - 16"

Manufactured by Alexander Arms
Manufactured by Alexander Arms
1 Review

In Stock

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Convert your standard AR-15 lower into a big bore .50 Beowulf lead launching machine with this Alexander Arms DIY kit. This 50 Beowulf upper receiver kit features a standard anodized, Mil-Spec, forged upper that is completed with BCG and charging handle. The .50 Beowulf barrel is 16” long and comes with a low profile gas block and tube installed. The gas block has not been torqued down to allow removal for installation of the barrel nut and handguard of your choosing. Includes a thread protector that is threaded 49/64-20. Also included is a 7 round magazine.

  • 16” .50 Beowulf barrel
  • Forged Mil-Spec upper
  • Includes BCG and charging handle
  • Includes 49/64-20 thread protector
  • Includes gas block and tube
  • Includes 7 round magazine
  • Compatible with Mil-Spec AR-15 lowers

Alexander Arms are the originators of the .50 Beowulf big bore AR-15 platform as well as the 6.5 Grendel, and even an AR-15 chambered in .17 HMR. Alexander Arms is a true innovator in the AR-15 space by continually building semi-automatic rifles chambered effective calibers.
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Barrel Coating
Barrel Length16
BrandAlexander Arms
Caliber Gauge.50 Beowulf
Gas System LengthCarbine
Gas System TypeDirect Impingement
Muzzle DeviceThread Protector
Thread Pattern49/64 X 20
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

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.50 Beowulf


Two words: BAD A**!!!!!!
<br>Everything functioned great!