Understanding the Firing Pin Spring in Your AR-15 What is a Firing Pin Spring? At the heart of the firing process lies a mechanism as essential as it is unassuming: the AR-15 firing pin spring. It’s a small, coil-shaped piece of metal housed within the bolt carrier group (BCG) of your rifle. Its primary function … Read more
Understanding the Core: Direct Impingement vs. Gas Piston Systems The Direct Impingement (DI) System Explained At the heart of any AR-15’s operation lies its gas system. This system harnesses the expanding gases produced by the ignited propellant within the cartridge to cycle the action, loading a fresh round into the chamber and preparing the rifle … Read more
Understanding the AR-15 Barrel The Role of the Barrel The AR-15 rifle, a cornerstone of modern firearm design, enjoys unparalleled popularity among shooting enthusiasts, collectors, and those seeking self-defense capabilities. Its modularity and adaptability, central to its appeal, allow for extensive customization to perfectly suit individual needs and preferences. One critical component driving this versatility … Read more
Understanding the Palmetto State Armory and the PA-15 Palmetto State Armory (PSA) entered the firearms market with a mission: to provide quality firearms and components at prices accessible to a wider range of enthusiasts. They’ve achieved this through a combination of in-house manufacturing, strategic sourcing, and a strong online presence. PSA’s business model allows them … Read more
The Protective Guardian: Unveiling the Function of the Dust Cover The Purpose of the AR-15 Dust Cover The AR-15. More than just a firearm, it’s a canvas. A statement. A symbol of freedom, responsibility, and for many, a deep-seated passion. From the tactical enthusiast to the weekend range shooter, the AR-15 rifle offers unmatched versatility … Read more
What Exactly Defines a .22 WMR AR Upper? Key Components The AR-15 platform is renowned for its modularity. This system allows users to easily swap components, such as the upper receiver, to change the caliber of their firearm. A .22 WMR AR upper is, at its core, a complete upper receiver assembly specifically designed to … Read more
Introduction In the realm of modern firearms, the AR platform reigns supreme, celebrated for its modularity, versatility, and widespread adoption. Among the myriad configurations available, the ten and a half inch barrel AR-15 stands out as a compelling choice, offering a unique blend of compactness and firepower. This article delves deep into the world of … Read more
Understanding the Cartridges and the Barrels Diving into the 5.56x45mm NATO The 5.56x45mm NATO is a military standard, developed as a small-caliber, high-velocity round intended for the M16 rifle. It boasts a slightly different design and different specifications compared to the .223 Remington. The 5.56mm cartridge is designed to handle higher pressures. This enhanced pressure … Read more
The Company’s Path: A Look Back A Brief History Rock River Arms began its journey in the firearms industry with a commitment to crafting precision-built AR-15s. They quickly established themselves as a manufacturer focused on delivering high-quality components and meticulous assembly. The company’s core philosophy centers on providing shooters with reliable and accurate firearms, which … Read more
The AR-15 Magazine: An Essential Component Types of Magazines Before exploring the specific numbers, it’s essential to grasp the fundamental role of the AR-15 magazine. This component isn’t merely a container for ammunition; it’s a precisely engineered system that feeds cartridges reliably into the rifle’s chamber. The quality and design of the magazine directly impact … Read more
