AR-15 Buyer's Guides
Educational articles explaining component tradeoffs and design considerations. Neutral analysis, not product recommendations.
.308 Win vs. 6.5 Creedmoor for AR-10 Builds
A technical comparison of .308 Winchester and 6.5 Creedmoor for AR-10 platform builds — covering ballistics, recoil, parts availability, and which cartridge fits which use case.
5.56 NATO, .223 Remington, and .223 Wylde: Chamber Differences Explained
A technical breakdown of the differences between 5.56 NATO, .223 Remington, and .223 Wylde chambers — what each accepts safely, and how to choose for your build.
AR-10 Receiver Patterns: DPMS vs. Armalite Compatibility
The AR-10 has two incompatible receiver patterns — DPMS and Armalite — that look similar but do not share parts. This guide explains the differences and how to buy correctly.
AR-15 Bolt Carrier Groups: Materials, Coatings, and Weight
A practical guide to AR-15 BCG tradeoffs, including bolt materials, carrier finishes, gas key quality, and how carrier mass influences system behavior.
AR-15 Caliber Options Beyond 5.56: What Changes and Why
A neutral overview of common AR-15 caliber paths beyond 5.56, including .300 Blackout, 6.5 Grendel, and .22 LR conversion approaches with practical system tradeoffs.
AR-15 Components: A Complete Reference Guide
A comprehensive overview of every major component in an AR-15 build—including what's inside bolt carrier groups and parts kits—organized by assembly for new builders.
AR-15 Optic Height Over Bore Explained (1.54, 1.93, 2.26)
An AR-15 optic mounting guide explaining height over bore, close-range offset, holdovers, and tradeoffs between absolute co-witness, lower-third, and taller mount heights.
AR-15 Single-Stage vs Two-Stage Triggers: How to Choose
A practical AR-15 trigger guide covering single-stage vs two-stage feel, pull weight, reset, and which setup tends to fit duty, general-purpose, and precision use.
AR-15 Stocks and Braces: Adjustability, Cheek Weld, and Practical Tradeoffs
A neutral guide to stock and brace setup on AR-pattern rifles and pistols, covering length of pull, cheek weld, sling setup, and practical handling tradeoffs.
AR-15 Terminology: A Builder's Reference
A concise reference guide to AR-15 terms, acronyms, and concepts — covering the platform, components, ammunition, and legal classifications commonly encountered by builders.
AR-9 Magazine Compatibility: Glock, Colt, and Proprietary Patterns
AR-9 lowers are built around one of three magazine patterns — Glock, Colt, or proprietary. This guide explains the differences, which magazines fit each pattern, and how to choose.
Build vs. Buy: Choosing Your Path to an AR-15
A practical breakdown of building an AR-15 from parts versus buying a complete rifle — covering cost, customization, skill requirements, and when each approach makes sense.
Buying Firearms Online: The FFL Transfer Process Step by Step
A practical, neutral walkthrough of how online firearm purchases flow through a local FFL transfer, from checkout to pickup day.
Choosing a Barrel: Length, Profile, and Twist Rate
A neutral guide to how barrel length affects velocity and handling, how profile changes weight and heat management, and how twist rate stabilizes different bullet weights.
Handguard & Rail Systems: M-LOK, Picatinny, and Free-Float vs. Drop-In
An overview of AR-15 handguard and rail systems, comparing M-LOK and Picatinny attachment standards and the tradeoffs between free-float and drop-in designs.
How to Choose an FFL Transfer Dealer for Online Orders
A practical framework for choosing a transfer dealer based on communication, fees, turnaround time, and reliability rather than price alone.
Left-Handed AR-15 Builds: Ambi Controls and Component Selection
A neutral guide to component strategies for left-handed shooters, left-eye dominant right-handed shooters, and those managing eye/hand dominance mismatches. Covers ambi uppers, charging handles, gas system tuning, and real-world tradeoffs.
Muzzle Device Selection for Suppressor Hosts
An examination of muzzle device options for suppressed AR-15s, covering thread pitch standards, mount systems, alignment considerations, and the tradeoffs between direct-thread, QD, and taper-mount interfaces.
Muzzle Devices: Flash Hiders, Compensators, and Brakes
A neutral overview of how flash hiders, compensators, and brakes work, what each is designed to do, and the tradeoffs in recoil, flash, and concussion.
NFA Basics for AR-15 Builders: SBR, Suppressor, Pistol, and AOW
A plain-language explanation of how the National Firearms Act applies to AR-15 builds — covering short-barreled rifles, suppressors, pistol configurations, and AOWs.
Online Orders: What Ships to Your Door vs. What Requires an FFL
A practical primer on how online firearm-related purchases are typically routed, including when local FFL transfer handling is commonly required.
Optics 101: Red Dots, LPVOs, and Magnified Scopes
A high-level overview of the main optic categories, explaining tradeoffs between speed, versatility, and precision for AR-15 builds.
The AR-10 Platform: What It Is and How It Differs from the AR-15
A practical overview of the AR-10 — its origins, how it differs from the AR-15, available calibers, and when it makes more sense than a standard AR-15 build.
The AR-15 Buffer System Explained
A neutral overview of AR-15 buffer systems, covering carbine vs. rifle receiver extensions, buffer weights, springs, and how these parts affect cycling and recoil.
The AR-15: Origin and Platform Evolution
A concise history of the AR-15 — from Eugene Stoner's 1959 design through military adoption, civilian market growth, and the platform's evolution into today's most modular rifle.
The AR-9 Platform: Pistol Caliber Carbines on the AR Pattern
An overview of the AR-9 — what it is, how it differs from an AR-15, why builders choose it, and what to know before starting a pistol caliber carbine build.
Understanding AR-15 Gas Systems
A neutral explanation of gas system length tradeoffs, port pressures, and how these design decisions affect reliability, recoil, and parts wear.