|A new AR-15 in 50 Beowulf. Lower has custom grip, 3.5 lb trigger, with up graded 6 position stock. The upper has a 16" cromoly barrel with a 1:20 twist and M mod stock.
The .50 Beowulf is a proprietary caliber developed as a specialized cartridge. Alexander Arms and Delta Firearms oversees all aspects of the production of the system and related accessories. Their reluctance to divulge information has been a source of irritation to some writers. Because Alexander Arms holds a trademark on the name .50 Beowulf, a number of other companies produce weapons and ammunition reverse engineered to the same dimensions under the name 12.7x42mm. ||