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AR-15 Uppers
.50 Beowulf® | AR-15 Uppers
All .50 Beowulf® upper receiver assemblies are fully-complete, function-tested, and ready to fire. All available products and options are visible in the Online Store. We do not produce custom weapons.
The .50 Beowulf® was designed to not have an ejection port cover. The port is much larger than a typical AR-15. As an addendum, the hinge points are left on the receiver because the upper receiver would cost more to manufacture by removing them from the design. They are not left specifically so that port doors can be retrofitted to the upper and we do not encourage this retrofitting.
All uppers and rifles are built to order and have an estimated lead time of 4-6 weeks.
The .50 Beowulf® was designed to not have an ejection port cover. The port is much larger than a typical AR-15. As an addendum, the hinge points are left on the receiver because the upper receiver would cost more to manufacture by removing them from the design. They are not left specifically so that port doors can be retrofitted to the upper and we do not encourage this retrofitting.
All uppers and rifles are built to order and have an estimated lead time of 4-6 weeks.
.50 Beowulf® Tactical Upper Features:
- Flat-top receiver
- Standard AR Trigger (Upgrade Options Below)
- 16.5" chrome moly barrel with 1:20 twist rate
- Thread Protector
- Low-profile gas block
- Manticore Arms Transformer Rail handguard
- Direct impingement operating system
- Barrel threaded 49/64-20
- One 7-round magazine
- Weight of upper is 4.45 lbs.
- Flat-top receiver
- Standard AR Trigger (Upgrade Options Below)
- 16.5" chrome moly barrel with 1:20 twist rate
- Thread Protector
- Low-profile gas block
- Manticore Arms Transformer Rail handguard
- Direct impingement operating system
- Barrel threaded 49/64-20
- One 7-round magazine
- Weight of upper is 4.45 lbs.
This unit is 100% complete and is compatible with any standard-specification lower receiver (no modifications required)
Upper is shown with an FDE Cerakote finish, FRAG grip panels, and M-Lok panels. These are all available as upgrade options below.
.50 Beowulf® Hunter Complete Upper Features:
- Flat-top receiver
- Ambidextrous Charging Handle
- 16.5" button-rifled, chrome moly barrel
- 1:20 twist rate
- Tacstar Carbon Fiber Handguard
- Direct impingement operating system
- 49/64-20 muzzle threading (non-optional)
- Thread Protector (Muzzle upgrades available below)
- Woodland Camo Finish (non-optional)
- One 7-round magazine.
This unit is 100% complete and is compatible with any standard-specification lower receiver (no modifications required).
.50 Beowulf® Hunter Complete Upper Features:
- Flat top receiver
- Ambidextrous Charging Handle
- 16.5" chrome moly barrel
- Thread Protector (Muzzle upgrades available below)
- 1:20 twist rate
- Tacstar Carbon Fiber Handguard
- Low-profile gas block
- Direct impingement operating system
- One 7-round magazine.
- Weight of upper is 4.25 lbs.
- Only Available in Black
This unit is 100% complete and is compatible with any standard-specification lower receiver (no modifications required).
.50 Beowulf® Advanced Weapon System Complete Upper Features:
- Flat-top receiver
- 16.5" chrome moly barrel
- 1:20 twist rate
- Low-profile gas block
- Midwest Industries free-floating four-railed handguard
- Direct impingement operating system.
- One 7-round magazine
- Weight of upper is 4.45 lbs.
- Flat-top receiver
- 16.5" chrome moly barrel
- 1:20 twist rate
- Low-profile gas block
- Midwest Industries free-floating four-railed handguard
- Direct impingement operating system.
- One 7-round magazine
- Weight of upper is 4.45 lbs.
This unit is 100% complete and is compatible with any standard-specification lower receiver (no modifications required).
.50 Beowulf® 12" Upper Complete Assembly Features:
- Flat-top receiver
- 12-inch barrel
- Thread Protector
- Tacstar Carbon Fiber Handguard
- 1:20 twist rate
- Direct impingement operating system
- 49/64-20 TPI threaded muzzle
- One 7-round magazine.
- Weight of upper is 4.3 lbs.
- Muzzle upgrades available below
- All Cerakote coatings are custom and will be charged upfront and will be non refundable.
- Flat-top receiver
- 12-inch barrel
- Thread Protector
- Tacstar Carbon Fiber Handguard
- 1:20 twist rate
- Direct impingement operating system
- 49/64-20 TPI threaded muzzle
- One 7-round magazine.
- Weight of upper is 4.3 lbs.
- Muzzle upgrades available below
- All Cerakote coatings are custom and will be charged upfront and will be non refundable.
This upper receiver assembly is intended for use with a registered SBR or class III lower receiver.
This unit is 100% complete and is compatible with any standard-specification lower receiver (no modifications required)
All NFA rules apply
This unit is 100% complete and is compatible with any standard-specification lower receiver (no modifications required)
All NFA rules apply
.50 Beowulf Upper Kit DIY Features:
- Includes complete upper receiver
- Charging Handle
- Gas block
- Dowel pins
- Gas tube
- 16" threaded barrel
- Thread protector
- Complete BCG with bolt
- One 7 Round Magazine
- Includes complete upper receiver
- Charging Handle
- Gas block
- Dowel pins
- Gas tube
- 16" threaded barrel
- Thread protector
- Complete BCG with bolt
- One 7 Round Magazine
Kit includes all parts needed to build your own complete genuine Alexander Arms Beowulf® upper. This kit allows you to choose your own handguard based on your needs. Barrel is drilled with the correct gas port size and allows you to confidently build this upper while at the same time customizing to your own needs.
.50 Beowulf® 12" DIY Upper Kit Features:- Thread protector
- Charging Handle
- BCG
- Bolt
- One 7 round magazine
- Muzzle devices can also be purchased as a separate item below
This is the perfect upper kit to build your own AR pistol or SBR (all NFA rules apply)