AR-15 Parts List: Every Component Explained
Complete AR-15 parts list with every component explained, price ranges at budget through premium tiers, and where to spend vs save on your build.
Nick Hall
Free Float vs Drop-In Handguard: Which Is Better?
Free-float vs drop-in AR-15 handguards compared on accuracy, weight, heat management, installation, and cost. When each type makes sense for your build.
Mil-Spec vs Commercial AR-15: What’s the Difference?
What mil-spec actually means for AR-15 parts, when it matters for compatibility, and when aftermarket parts deliberately exceed military specifications.
AR-15 Barrel Length Guide: How Length Affects Everything
Every AR-15 barrel length from 10.3 to 20 inches compared with real velocity data, gas system pairings, and practical recommendations by use case.
Best AR-15 for Beginners (2026): 8 First-Time Buyer Picks
The 8 best AR-15 rifles for beginners in 2026. Ruger AR-556, PSA PA-15, IWI Zion-15, and more. What to look for in your first AR, plus training and accessory recommendations.
Best Left-Handed AR-15 Rifles (2026): Ambi & True Left-Hand
The 8 best left-handed and ambidextrous AR-15 rifles in 2026. From true left-ejecting Stag Arms to full-ambi Radian, LMT, ADM, and budget ambi builds.
Best Piston AR-15 Rifles (2026): 7 Picks Compared
The 8 best piston-driven AR-15 rifles in 2026. Sig MCX Spear LT, LWRC IC-A5, HK MR556A1, and more. Short-stroke vs long-stroke comparison with honest reviews.
Best AR-15 for Coyote Hunting (2026): 8 Rifles Tested
The 8 best AR-15 rifles for coyote hunting in 2026. Barrel lengths, twist rates, optic pairings, and real field performance from a dedicated predator hunter.
Best AR-15 for Home Defense (2026): 8 Top Picks Tested
The 8 best AR-15 rifles for home defense in 2026. From the BCM RECCE-11 to budget PSA pistols, with barrel length recommendations, ammo selection, and CQB considerations.