Find the newest developments, industry announcements and frequently asked question discussions on gun industry and laws. 

Posted by on May 17, 2018 .

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? In 2018, 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 bullet that is longer and heavier than the .223 and stays supersonic past 1,300 yards.

.224 Valkyrie
.224 Valkyrie is the hot new caliber everyone is talking about. In...

Posted by on Apr 02, 2018 .

Moriarti Armaments is proud to present .224 Valkyrie uppers as an addition to its MA-15 line. 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-range ability and exceptional ballistic performance. This cartridge provides extremely flat trajectories and match accuracy beyond 1,300 yards. The 224 Valkyrie offers...

Posted by on Mar 30, 2018 .

450 Bushmaster Rifles

Based on popular demand, Moriarti Armaments is proud to present an addition to its AR-15 family, a 450 Bushmaster round. The uppers can attach to virtually any AR-15 lower receivers allowing for a new rifle cartridge to perform.

450 Bushmaster was originally introduced as a big bore hunting rifle, offering several inherent advantages to avid hunters. So let’s look at a little history.

The Thumper round, as it is affectionately known in the community, was created by Col. Jeff Cooper. notorious for his disdain for the .223 caliber AR-15 platforms, who envisioned a cartridge for big game that could handle shots...

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. 


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. 


The real differences are found in the amount of each agent present. For example, the 6065 aluminum alloy contains less zinc than the 7075 alloy. Thus, the 6065 alloy provides better welding...

Posted by on Jan 29, 2018 .
We here at Moriarti want only the best for our customers, our lowest BCG offering is a Mil-spec+, meaning it meets and exceeds all Mil-spec requirements. 

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 Cuts on Bolt Carrier - During the operation of a direct impingement gas system, hot gas is taken directly from the gas port and moved into the action of the AR-15. This gas contains carbon...

Posted by on Jan 10, 2018 .

Choose Your Side - Mlok or Keymod? Decisions, decisions, decisions. We all want our rifles to look specific to us. And our preferences what defines us. So, do you choose mlok or keymod or quadrail as your handguard of choice.

Being an AR manufacturer, I often get emails that I should make my products with mlok vs. keymod or vice versa.

Posted by on Jan 02, 2018 .

The Modern AR-15. 

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 Inches

1-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 monolithics up to 70-grains—but they do so right at the edge of the envelope so not all rifles will do it. 

1-in-8 Inches

For a 16-inch general-use carbine, the 1-in-8 twist is about as...

It’s true what they say – you can find a silver lining in any situation. While being captured at home for 2 whole days under Hurricane Irma attack, without internet, phone, lights and etc., and those of you who know me, it’s something of impossible for me, I am always on the go, I got to thinking about my clients and on frequent requests that I am getting as custom orders.

The majority of my clients are male, and it’s very rarely I see a woman calling me asking me about a particular product. It would usually be my male client, asking me particulars about a certain rifle and to make it “woman” friendly in some funky...