Moriarti Blog

The AR-15 Rifle is the most popular rifle in America. It’s versatile and people put them to use in all sorts of applications. From target shooting for fun, to competition, small game hunting and finally, self-defense. Whatever the application, the essential component is accuracy of your AR-15 rifle. What are the things needed to achieve the desired accuracy in your AR-15 rifle? The top 4 essential components are listed below, of course not counting AR-15 barrel!1.  ... Read more

With the ever growing demand of Glock compatible pistol ARs such as9mm, 45 ACP, 10mm and 40 S&W, the question always arises on what is the difference between Last Round Bolt Hold Open LRBHO system vs. your standard AR build. So I thought, this would be a good place to start – what are the benefits of Last Round Bolt Hold Open.LRBHO is a highly desirable feature on your blow back action rifles. Mainly it allows for a faster reload. This is when the last round is fired, the bolt will stay... Read more

6.5 Grendel rifle is a new fad for long range shooting. Cost efficient, based on your standard AR-15 platform, 6.5 Grendel is the new go to AR! 6.5 Grendel Type 2 is a simple switch - all you need is a barrel and a BCG - and here you go, you have a new caliber on your hands! It even accepts (type 2 only) your standard 5.56 magazines.In this age of e-commerce, savvy consumer gathers the parts from multiple sources. Yes, our hobby is expensive and we must stay within a budget. But by doing so, we ... Read more

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