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Moriarti Armaments is a firearms manufacturer that specializes in building custom AR-15 and AR-10 rifles, as well as Glock style pistols and rifles, or what we call, Pistol Caliber firearms. One of our most popular line is the AR 45 Glock style firearms, which is a hybrid firearm that combines the features of the AR-15 and Glock platforms.The AR 45 is a semi-automatic pistol that fires .45 ACP rounds. It usually comes with a 7.5-inch barrel and a total length of 23 inches with the stock extended... Read more

Firearms are an important tool for many individuals who take self-defense seriously, go to the range, or participate in competitions. With so many different firearms available, it can be hard to know which one is right for you. This is especially true when it comes to comparing the differences between the AR-9 or 9mm and the AR-45 or 45 ACP.The History of 9mm and 45 ACPThe 9mm has been around for over a century, having been developed by Georg Luger in 1902. It has since become one of the most po... 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