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AR15 Parts
Find everything you need to build, upgrade, or repair your AR-15 at ICB Firearms, located in St. Clair Shores, MI. We carry a full selection of AR parts, including barrels, buffer tubes, BCGs, charging handles, handguards, and trigger assemblies. Whether you’re upgrading your AR rifle for competition or outfitting a home defense build, we have you covered. Pair your components with AR magazines, gun scopes, and gear for the ultimate tactical setup. Be sure to browse the full rifle parts section for other compatible upgrades. Quality parts are essential for dependable performance, and our selection is designed for serious builders and shooters alike. Shop AR-15 parts today and start building with confidence.
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1 - 16 of 63608 posts
AR15 Lowers
EPC-9 STRIPPED LOWER RECEIVER FOR AR-15 FDE
$20 offOriginal price was: $210.00.$189.99Current price is: $189.99.
AR15 Barrels
FAXON AR15 BARREL .223 WYLDE
$26 offOriginal price was: $330.00.$303.60Current price is: $303.60.
AR15 Barrels
FAXON AR15 BARREL 5.56 NATO
$23 offOriginal price was: $175.00.$151.80Current price is: $151.80.
AR15 Barrels
FAXON AR15 BARREL 5.56 NATO – 14.5″ 1:8
$14 offOriginal price was: $181.00.$167.00Current price is: $167.00.
AR15 Uppers
FAXON ARAK-21 COMPLETE UPPER – RECEIVER 7.62X39 12.5″
$80 offOriginal price was: $999.00.$919.08Current price is: $919.08.
AR15 Uppers
FAXON ASCENT COMPLETE 350 – LEGEND UPPER RECEIVER
$46 offOriginal price was: $575.00.$529.00Current price is: $529.00.
AR15 Uppers
FAXON ION ULTRALIGHT COMPLETE – UPPER RECEIVER 5.56
$89 offOriginal price was: $1,100.00.$1,011.08Current price is: $1,011.08.
AR15 Uppers
FIGHT MCR DUAL FD UPR 556 PIC 16.25″
$500 offOriginal price was: $6,399.99.$5,899.99Current price is: $5,899.99.
AR15 Lowers
FN 15 MILITARY COLLECTOR M16 LOWER RECEIVER
$10 offOriginal price was: $154.00.$144.00Current price is: $144.00.
AR15 Lowers
FN FN15 Patrol Lower Receiver Assembly
$50 offOriginal price was: $469.00.$419.00Current price is: $419.00.