Moriarti Blog

This is for an AR-15 lover. What if your AR-15 could shoot in semi-automatic with sub-MOA accuracy to 1,000 yards and beyond? Now you can! But how? There are two calibers to consider.The 6.5 Grendel and the .224 Valkyrie were designed to extend the range of the AR-15 beyond 1,000 yards. They each take a very different approach. The Grendel uses a heavier, longer, and fatter bullet that maintains supersonic flight past 1,200 yards. The Valkyrie uses a .224” diameter bulle... Read more

Moriarti Armaments is proud to present .224 Valkyrie uppers as an addition to its MA-15 line of firearms. Built for long range shooting and hunting alike, this upper receiver will perform time and time again, without breaking the bank. Easily attached to any Mil-Spec AR-15 lower receiver, our 224 Valkyrie upper is the ultimate addition to your AR-15 collection.The 224 Valkyrie cartridge developed by Federal Premium transforms the AR-15 platform by delivering unmatched long-ra... Read more

When it comes to rifles, it's essential to understand the difference between calibers to make the right choice. Two calibers that have gained significant popularity in recent times are the 450 Bushmaster and 224 Valkyrie. In this article, we'll discuss the origins, specifications, and potential uses of both the calibers, helping you make a well-informed decision.Origin:The 450 Bushmaster caliber was developed in 2007 by the legendary gun designer, Tim LeGendre. The initial purpose of this calibe... Read more

6065 or 7075 - which aircraft-grade forged aluminum alloy is best for AR-15 lowers? Selecting a grade is one's task on finding a balance between performance and cost. A good place to start is by understanding similarities and differences between 6065 and 7075 aluminum alloy. Similarities:The two alloys are very similar. They have the same agents such as magnesium, silicon, copper, iron, zinc, titanium, manganese, etc. Both are heat treatable. Differences:The real d... Read more

We here at Moriarti want only the best for our customers. And rifle is not a rifle without a proper Bolt Carrier Group. So let's discuss M16 BCG, its construction, and functionality.We can start with the bolt carrier - it is constructed of 8620 Steel and completed with a Nitrite finish. This is not a coating, but a treatment to the surface of the metal which extends life and wont flake off as it wears. It is a hard and slick surface for low friction and easy cleaning. Reliability ... Read more

The 50 Beowulf and 5.56 rounds are two popular types of firearms cartridges based on AR-15 platform. Both have unique features that make them desirable to gun enthusiasts and novice shooters alike. Understanding the differences between these two cartridges can help shooters make an informed decision when selecting their preferred firearm.The 50 Beowulf cartridge was developed in the early 2000s by Alexander Arms. This round was designed to deliver high stopping power, which makes it suitable for... Read more

The Modern AR-15 rifle. So many choices. And this is always a Controversial topic - what barrel with what twist rate is the best to use. The answer is pretty simple - depending what you will be using your rifle for.1-in-9 Inches1-in-9 is a great compromise twist rate—not too fast to cause problems with the 55-grain Bullets, but fast enough to stabilize all but the heaviest bullets under most circumstances. This twist will stabilize most traditional bullets up to 75-grains, and ... Read more

IntroductionWhether you're an experienced shooter or new to the game, choosing the right ammunition for your rifle is essential to success in the field. With countless options on the market, selecting the right cartridge can be a daunting task. Today, we'll compare two popular cartridges, the 300 Blackout and the 7.62x39 AR-47, to help you make an informed decision.Background InformationBoth cartridges have a rich history in the world of firearms. The 7.62x39 has its origins in the Soviet Union,... Read more