The pre-built rifles all sport 16.5-inch barrels and come in a variety of fixed and adjustable stock configurations. Unless you configure the world’s most unwieldy AR pistol, you’ll need to obtain an ATF short barrel rifle tax stamp for that one. However, if you’re in the door-kicking business, you might be interested in the 12-inch barrel version. Most of the current upper-receiver models include 16.5-inch barrels. Those cases are on the chubby side and need a bit more elbow room to escape. What’s even less obvious is that the Alexander upper has an enlarged ejection port. What’s not as obvious is that the Alexander Arms upper receivers include a bolt carrier and bolt compatible with that 7.62x39 mm rebated cartridge rim. If you go the upper receiver route on a lower of your own, you’ll need the installed barrel with the much bigger hole. This not only allows use of a “more standard” bolt, but it also allows that bolt to have enough metal on it to withstand pressure over time and use.Īs for the launcher part, Alexander Arms offers both complete upper receivers and fully-built rifles.

So that it can use a 7.62x39 mm bolt face, the case rim is rebated, or smaller than the case body. Developed by Alexander Arms, this cartridge is a tapered, straight-wall case topped with, you guessed it, a. The cartridge is just short enough to fit in a standard AR magazine, although for obvious reasons (it's fat) it won’t double stack like.

50 Beowulf is an elephantine round designed to increase stopping power of an AR-15-platform rifle by a factor of 10 billion or so. He probably wouldn’t have even needed a spare magazine and would be alive drinking Danish ale today. I’m thinking that the original Beowulf would have much rather entered that dragon’s lair with an Alexander Arms. So given the attributes we’re going to discuss, the Beowulf name seems entirely appropriate. You might recognize that name from another cartridge developed by Alexander Arms. If you want to win trivia bar bets, the monster that Beowulf killed was known as Grendel. Bottom line: Beowulf is an epic, but dead, folk hero with valid monster-slaying certificate of participation. Later, to get the renewal on his man card, he has to travel somewhere to slay a dragon but is mortally wounded in the process. The people are so happy that the beer hall was saved that they eventually make Beowulf King. This royally ticks off the monster's mom (yes, really), so Beowulf uses a giant sword to slay her, too. Anyway, a Scandinavian badass, Beowulf, comes along to kick the monster's butt, successfully I might add. Maybe this story should have been a Greek tragedy. Yes, the beer hall was really under attack. Danish King Hrothgar’s beer hall was under attack by a demonic monster. To get us all on the same page, here’s the social-media-friendly, condensed version of the story. OK, so to be honest, I didn’t pay attention in English Lit class either. 50 Beowulf and its namesake, we all studied Beowulf in high school, right? Take a moment to recall the 3,182 lines of alliterative verse poetry written in unintelligible Old English. Just to make sure we’re all on the same page when it comes to the.

50 beowulf muzzle brake