Redacted Arms Dev Admin, Author at Redacted Arms

Author: Redacted Arms Dev Admin

AR-style pistol-caliber carbine with a scope on a dark rusted metal background

Why Pistol-Caliber Carbines Took Off

Ten years ago, pistol-caliber carbines were a niche: a few subguns, some folding carbines, and a handful of AR-9 builds.…

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Two semi-automatic pistols and loose brass ammunition on a shooting range table

Taurus TX22 vs Glock 44 vs Ruger Mark IV: Choosing a .22 Training Pistol

A .22 training pistol earns its place by making you shoot your main gun better, not by being the nicest…

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Aerial view of arranged AR-15 drop-in triggers forming a circle on a rusted metal surface

Surface Roughness: The Spec Most Shooters Never See but Components Still Feel

A trigger can measure exactly to spec on pull weight and still feel gritty. Part of the reason is a…

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a detailed view of a pile of brass bullet casings

Why Ejection Pattern Is an Imperfect Diagnostic Tool

Your brass lands at 2 o'clock; a forum chart says that means overgassed, and a heavier buffer is in your…

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a green circle target with bullet holes at an indoor shooting range

What a Function Check Can’t Tell You About Live Fire

You install a new trigger, pull the charging handle a dozen times, and every reset clicks right where it should.…

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a detailed view of a rifle barrel indoors, focused on muzzle

Cold Bore vs Hot Bore: Why POI Shift Isn’t Always the Barrel

Your first group lands right where you zeroed. Twenty rounds later, the next group sits low and left, and the…

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Detailed view of a rifle scope mounted on a tactical firearm

Optic Mount Repeatability: What Actually Determines Whether Zero Returns

Every quick-detach optic mount claims to return to zero. Most don't explain what that claim actually measures. Fewer explain why…

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a hunter wearing camouflage walks through a grassy field at sunset holding a rifle

Why Mil-Spec Parts Vary Between Manufacturers

Two components can both be sold as “mil-spec,” fit the same AR platform, and still differ in their finish, machining,…

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a disassembled firearm displayed on a textured American flag surface, showcasing parts and ammunition

How 9mm Became the Dominant Defensive Caliber

For a cartridge developed more than a century ago, 9mm has shown a remarkable ability to outlast whatever was supposed…

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a person in camo gear aiming a gun

What Is the SP5 and How Does It Differ From the MP5?

Few firearms have a profile as instantly recognizable as the MP5. So when Heckler & Koch released the SP5 with…

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