Best AR-15 Bolt Carrier Groups (2026): 8 BCGs Tested
We tested 8 of the best AR-15 bolt carrier groups from BCM, Toolcraft, Daniel Defense, and Cryptic Coatings. C158 vs 9310 steel and coatings compared.
Gun Parts
Get replacement gun parts & accessories, as well as upgrades for your rifle and pistols here.
Best AR-15 Lower Receivers (2026): 8 Stripped & Complete Ranked
We ranked the 8 best AR-15 lower receivers from Aero Precision M4E1, Radian AX556, ADM UIC, Anderson, and more. Forged vs billet, ambi controls, and live prices.
Best AR-15 Accessories (2026): 15 Must-Have Add-Ons
The 15 best AR-15 accessories every owner needs. From red dots and weapon lights to magazines, cleaning kits, and bipods. Top pick and budget alternative for each.
Best AR-15 Upgrades in Order (2026): What to Buy First
The definitive AR-15 upgrade priority guide. We rank 8 upgrades in the exact order you should buy them, from optics to BCGs, with budget and premium picks for each.
Best AR-15 Slings (2026): 8 Rifle Slings Tested
We tested 8 of the best AR-15 slings including Blue Force Gear Vickers, Magpul MS4, Ferro Slingster, and Edgar Sherman ESD. Two-point vs single-point compared.
Best AR-15 Muzzle Devices (2026): 8 Brakes, Comps & Flash Hiders
We tested 8 of the best AR-15 muzzle devices including SureFire SOCOM, VG6 Gamma, and the A2 flash hider. Brakes vs comps vs flash hiders compared.
Best AR-15 Stocks (2026): 8 Buttstock Picks Ranked
We ranked 8 of the best AR-15 stocks including Magpul SL-S, B5 SOPMOD, BCM GUNFIGHTER, and budget options. Mil-spec vs commercial fit and cheek weld compared.
Best AR-15 Upper Receivers (2026): 8 Complete Uppers Ranked
We ranked the 8 best AR-15 complete uppers from BCM, Aero Precision, Daniel Defense, PSA, and more. Chrome-lined vs nitride barrels compared with live pricing.
Best AR-15 Handguards (2026): 8 Free-Float Rails Ranked
We ranked the 8 best AR-15 handguards including the BCM MCMR, Aero Atlas S-ONE, Geissele MK16, and budget free-float options.