Beowulf .50 Entry
Click for larger picture (Right side view)

FACTS
 Brand  
 MakeAlexander Arms
 Model.50 Beowulf Entry
 Method of operation  
 Semi AutomaticGas, Rotating Bolt
 Trigger1 Stage
 Feeding SystemSingle Stack box magazine
 Technical 
 Weight (with accessories, no mag)8.4 pounds
 Overall Length34.5"
 Barrel Length16.5"
 Twist Rate1:19"
 Functionality
 Bolt position when firedClosed
 Bolt upon last round firedOpen
 Magazine capacity4, 7, 10
 Decocking or Dry fireDry Fire
 Field Stripping  
 Tools requiredNo
 Small parts retained or looseRetained
 Ammunition  
 Caliber.50 Beowulf
 Energy @ Muzzle2,678
 Velocity @ Muzzle1,900
 Grains334
Alexander Arms Beowulf Radford logo
Click for larger picture (Right side view of Alexander Arms Radford)
Opinions
 Method of operation
 Stoner Direct Gas System very simple system however its can get hot and dirty.
better get some gun scrubber aerosol to clean the gas tube and if you can find them some very long pipe cleaners
 Functionality
PriceHigh (but average for high quality AR)
 AvailabilityLimited
 Modularity / AccessoriesVery Good
 AccuracyVery Good
 ReliabilityGood
 Ease of field Stripping
 Very good, No tools required
 Ergonomics
 The pistol grip make this rifle very ergonomically even though it is not reversible.  Left handed shooters will have spent shell casing deflecting in front of their face.  The addition of Ergo Grip, Ergo Grip Gapper help make it a very comfortable system.
 Sighting System (Optics)
 Optics work very well on this rifle because it is a flat top with a gas block that is also flat.  The addition of the Trijicon TriPower rounds out the package very nicely.
 Ammunition
 PriceVery High
 AvailabilityRare
 PunchOne of the biggest punches around
 Links
 http://www.alexanderarms.com/beowulf.htm
 http://www.trijicon.com/user/parts/parts_new.cfm?categoryID=11
 http://www.gunblast.com/50Beowulf.htm
 http://www.50beowulf.com/
 http://www.midwestindustriesinc.com/index.cfm?fuseaction=category.display&category_id=93
 http://www.insightlights.com/products-m3.htm
 http://www.ergogrips.net/item-detail.cfm?ID=4000&storeid=1&image=ergogrip.gif&CFID=18805966&CFTOKEN=26553143
 http://www.ergogrips.net/item-detail.cfm?ID=4370&storeid=1&image=lowprocvr.gif&CFID=18805966&CFTOKEN=26553143
 http://www.ergogrips.net/item-detail.cfm?ID=4085&storeid=1&image=gapper.gif&CFID=18805966&CFTOKEN=26553143
Comparing Rounds
Click for larger picture (Size comparison shows .50 Beowulf bigger than .45 and .223)

 My ramblings (Over all feelings; Why this Gun; is it worth it):

 I picked up this gun used from a good friend who was the original owner.  Its the only used gun I have in my collection but knowing the original owner and the quality of Alexander Arms I was not concerned.  I have had a Alexander Arms Beowulf AWS on order for over 20 weeks and just couldn't stand it anymore, so I leapt at the chance to purchase my friends rifle. 
I took all of the Halloween pumpkins we had out and started scoping in the gun, we found pumpkin chunks at 20+ yards  from where the pumpkin literally exploded from the 325gr hollow pointed soft tips we were shooting that day.

The amazing thing about this gun is really the .50 Beowulf round.  Putting the biggest possible bullet into an AR frame without major modifications.  The recessed rim allows it to work with a .308 (AR10) bolt - here again not a major modifications.   So you have an AR that you can hunt anything in North America with, personally I will replace my 30-06 with this gun for Hog Hunts.

The kick is not bad at all and less that a 12 gauge but felt the same as many 30 caliber rounds I have shot.
Muzzle climb (I don't have the compensator on mine) was much more than a .223 round but still manageable for follow up shots.

You can use normal AR15 magazines with the rifle (you will need to bend the feeding lips slightly).
Some people have stated that you need to place a single round follower in the magazine but I have not found that to be the case.
30 round .223 magazine Yields 10 rounds .50 magazine.
20 round .223 magazine Yields 07 rounds .50 magazine.
10 round .223 magazine Yields 04 rounds .50 magazine.

The Upper alone weighs in a 4.45 pounds, with all the items I have added I found its total real weight to come in at 8.4 pounds which is very managable.

I have added the following items:
    Trijicon TriPower Sighting System.
    Bottom Rail.
    Insight M3 Light.
    EgroGrip Grip, Rail Protectors, Gapper.
    Tactical Sling.
    Red Tape.

The Red Tape on the Magazine denote that I have modified the feed lips to work with .50 Beowulf Rounds.
 

Front Rail and M3 light
Click for larger picture (Addition of rail, M3 light, Rail protectors, Tactical Sling)


Click for larger picture (Multiple Ammunition Comparison )


Click for larger picture (Bullet size)


Click for larger picture (.50 Beowulf, .223 and .45 comparisons)


Click for larger picture (Ergo Grip and Ergo Gapper)


Click for larger picture (Trijicon TriPower)