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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 61788 posts
AR15 Uppers
Angstadt Arms AAUT109006 UDP-9 Complete Upper 9mm 6″
$75 offOriginal price was: $749.99.$674.99Current price is: $674.99.
AR15 Bolts
Angstadt Arms Bolt Carrier Group – 45ACP AR-15
$41 offOriginal price was: $199.99.$159.00Current price is: $159.00.
AR15 Lowers
APF SIDE FOLD ASSEMBLED LOWER CARBINE TUBE
$233 offOriginal price was: $630.00.$396.99Current price is: $396.99.
AR15 Uppers
APF UPPER 350LEG 16 12.5 MLOK HG NIT
$68 offOriginal price was: $674.99.$607.49Current price is: $607.49.
Other AR15 Accessories & Parts
AR-15 BILLET ULTIMATE DUST COVER 223 FDE
$3 offOriginal price was: $35.95.$32.95Current price is: $32.95.
AR15 Uppers
AR-15 BILLET UPPER RECEIVER BLACK
$8 offOriginal price was: $169.00.$160.55Current price is: $160.55.
AR15 Bolts
AR-15 BOLT COMPONENT KIT WITH FIRING PIN
$2 offOriginal price was: $29.99.$28.19Current price is: $28.19.
AR15 Lowers
AR-15 GEN 2 WARTHOG LOWER RECEIVER BLACK
$14 offOriginal price was: $279.95.$265.95Current price is: $265.95.