AR-15 Guides
Data-driven buying guides for every AR-15 component
41 guides
What to Buy Before Virginia's Gun Ban
Virginia's assault weapons ban takes effect July 1, 2026. The AR-15 community's advice is near-unanimous: stack lower receivers and magazines first, worry about building them out later. Here's the complete strategy.
AR15 Muzzle Device Guide: What 15,000+ Builders Thread On
Real data from 1,149 muzzle device selections. Zev Technologies leads at 6.2%, followed by Fortis and SureFire. See brand breakdowns and pricing.
AR15 Foregrip Guide: What 15,000+ Builders Actually Grip
Real data from 2,703 foregrip selections. Magpul AFG-2 leads at 19.2%. See brand breakdowns, angled vs vertical data, and pricing from 30+ retailers.
AR15 Magazine Release Guide: What 15,000+ Builders Choose
Real data from 2,463 mag release selections. Phase 5 PMR leads at 11.4%, Strike Industries Ambi at 11.1%. See breakdowns and pricing.
AR15 Rear Sight Guide: What 15,000+ Builders Choose
Real data from 380 rear sight selections. Magpul MBUS Gen 2 Rear leads at 26.3%. See breakdowns and pricing.
AR15 Safety Selector Guide: What 15,000+ Builders Choose
Real data from 2,663 safety selections. Timber Creek Ambi leads at 13.8%, Phase 5 at 9.4%. See breakdowns and pricing.
AR15 Weapon Light Guide: What 15,000+ Builders Actually Mount
Real data from 1,375 light selections. Streamlight ProTac HL-X leads at 17.5%. See brand breakdowns, lumen comparisons, and pricing from 30+ retailers.
AR15 Trigger Guard Guide: What 15,000+ Builders Choose
Real data from 1,947 trigger guard selections. B5 Systems ATG leads at 16.7%. See breakdowns and pricing.
AR15 Buffer Spring Guide: What 15,000+ Builders Choose
Real data from 1,185 buffer spring selections. Strike Industries Flat Wire Carbine leads at 26.7%. See breakdowns and pricing.
AR15 Iron Sights Guide: What 15,000+ Builders Actually Pick
Real data from 1,140 iron sight selections. NcStar Pro Series leads at 28.9%. See brand breakdowns, flip-up vs fixed data, and pricing from 30+ retailers.
AR15 Pressure Switch Guide: What 15,000+ Builders Choose
Real data from 658 pressure switch selections. SureFire Rail Grabber leads at 20.7%. See breakdowns and pricing.
AR15 Forward Assist Guide: What 15,000+ Builders Choose
Real data from 780 forward assist selections. Radian 7075 Aluminum leads at 24.0%. See breakdowns and pricing.
AR15 End Plate Guide: What 15,000+ Builders Choose
Real data from 677 end plate selections. Fortis Lightweight Gold leads at 29.7%. See breakdowns and pricing.
AR15 Handguard Accessories and Mounts Guide: 56+ Products Compared
GunPartPicker's guide to handguard accessories and mounts. Browse and compare products, see real pricing from 30 retailers, and find the right part for your build.
AR15 Buffer Tube Assembly Guide: What 15,000+ Builders Choose
Real data from 934 buffer tube assembly selections. Geissele Premium H3 DDC leads at 30.7%. See breakdowns and pricing.
AR15 Dust Cover Guide: What 15,000+ Builders Choose
Real data from 932 dust cover selections. Spike's Tactical Made in USA leads at 19.1%. See breakdowns and pricing.
AR15 Buffer Tube Guide: What 15,000+ Builders Choose
Real data from 1,537 buffer tube selections. BCM Mil-Spec 6-Position leads at 22.4%. See breakdowns and pricing.
AR15 Laser and Aiming Device Guide: What 15,000+ Builders Run
Real data from 405 laser selections. Steiner DBAL-D2 leads at 21.0%. See brand breakdowns, IR vs visible data, and pricing from 30+ retailers.
AR15 Buffer Guide: What 15,000+ Builders Choose
Real data from 1,316 buffer selections. Aero Precision H3 leads at 11.2%, BCM Carbine H2 at 9.7%. See breakdowns and pricing.
AR15 Suppressor Guide: What 15,000+ Builders Actually Buy
Real data from 661 suppressor selections. Otter Creek Polonium K leads at 13.3%. See brand breakdowns, mount compatibility, and pricing from 30+ retailers.
AR15 Takedown Pin Guide: What 15,000+ Builders Choose
Real data from 2,226 takedown pin selections. CMMG HD Kit leads at 23.6%. See breakdowns and pricing.
AR15 Bolt Catch Guide: What 15,000+ Builders Choose
Real data from 2,057 bolt catch selections. Strike Industries Extended leads at 25.1%. See breakdowns and pricing.
AR15 Front Sight Guide: What 15,000+ Builders Choose
Real data from 430 front sight selections. Magpul MBUS 3 Front leads at 14.0%. See breakdowns and pricing.
AR15 Optic Mount Guide: What 15,000+ Builders Actually Use
Real data from GunPartPicker builds shows which optic mounts builders actually choose. Weaver leads at 22.8%, followed by Leupold and Talley.
AR15 Rifle Scope Guide: What 15,000+ Builders Actually Mount
Real build data shows Vortex Strike Eagle 1-8x24 leads at 13.0%. See brand breakdowns, price tiers, and the scopes builders actually choose.
AR15 Red Dot and Optic Guide: What 15,000+ Builders Actually Run
Real data from 2,070 optic selections. EOTech XPS2 leads at 14.2%. See brand breakdowns, holographic vs reflex data, and pricing from 30+ retailers.
AR15 Gas Block Guide: What 15,000+ Builders Actually Install
Real data from 1,198 gas block selections. Wilson Combat Lo-Profile leads at 25.9%. See brand breakdowns, adjustable vs fixed data, and pricing.
AR15 Magnifier Guide: What 15,000+ Builders Choose
Real data from 524 magnifier selections. EOTech G45 5X leads at 23.7%. See breakdowns and pricing.
AR15 Gas Tube Guide: What 15,000+ Builders Choose
Real data from 1,280 gas tube selections. WMD Guns Nitromet Mid-Length leads at 22.0%. See breakdowns and pricing.
GunPartPicker: A PCPartPicker for Guns
GunPartPicker is a free PCPartPicker-style build tool for AR15, AR10, and AR9 rifles. 30,000+ products from 500+ brands, live pricing from 30 retailers, automatic compatibility checking, and shareable build links.
What Do You Wish You Knew Before Buying Your First AR-15?
Based on advice from over 1,000 real AR-15 owners: what to spend on, what to skip, the upgrades that actually matter, and the mistakes everyone makes. Real community wisdom, not marketing brochures.
AR-15 Stock Popularity Report: What 15,000+ Builders Actually Choose
Data from 15,000+ real AR-15 builds reveals which stocks and braces builders prefer. Magpul and Daniel Defense lead the collapsible segment.
AR-15 Grip Popularity Report: Analysis of 15,000+ Real-World Builds
Data from 15,000+ real AR-15 builds reveals which pistol grips builders prefer. Magpul leads, but Hexmag and Wilson Combat offer compelling alternatives.
The Most Popular AR-15 Charging Handles: Data from 15,000+ Builds
Data from 15,000+ real AR-15 builds reveals which charging handles builders prefer. Radian Raptor dominates, but Battle Arms Development offers serious competition.
AR-15 Handguard Trends: What 15,000+ Builders Installed in 2026
Data from 15,000+ real AR-15 builds reveals which handguards builders prefer. TacFire leads volume, but Daniel Defense and Midwest Industries dominate the mid-range.
The Most Trusted AR-15 BCGs: A 15,000-Build Data Analysis
Data from 15,000+ real AR-15 builds reveals which bolt carrier groups builders prefer. Aero Precision and PSA lead, but coating choice tells the real story.
AR-15 Trigger Popularity Report: What 15,000+ Builders Are Pulling
Data from 15,000+ real AR-15 builds reveals which triggers builders prefer. Geissele leads, with Rise Armament and Timney close behind.
Most Popular AR-15 Upper Receivers: Data-Backed 2026 Guide
Data from 15,000+ real AR-15 builds reveals which upper receivers builders trust. BCM leads, with Aero and Geissele close behind.
AR-15 Lower Receiver Trends: 15,000+ Builds Analyzed
Data from 15,000+ real AR-15 builds reveals which lower receivers builders trust most. Aero Precision M4E1 dominates, but PSA and Radian carve strong niches.
The Top AR-15 Brands of 2026: What 15,000+ Builders Actually Bought
Data from 3,357 qualified AR-15 builds reveals which brands builders actually choose. Aero Precision, Magpul, and Strike Industries lead — but the category breakdown tells a more interesting story.
AR-15 Barrel Length & Brand Report: Data from 15,000+ Builds
Choosing the right barrel length is one of the most impactful decisions in an AR-15 build. This guide breaks down velocity, dwell time, gas system compatibility, and real-world handling across every common barrel length from 10.5" to 20".