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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 61786 posts
AR15 Uppers
ARAK-21 5.56 NATO COMPLETE UPPER RCVR 12.5” MEDIUM
$80 offOriginal price was: $999.00.$919.08Current price is: $919.08.
AR15 Uppers
ARAK-21 5.56 NATO COMPLETE UPPER RECEIVER 16” MEDIUM
$80 offOriginal price was: $999.00.$919.08Current price is: $919.08.
Other AR15 Accessories & Parts
ARMASPEC SRS BUFFER KIT H GEN 4
$12 offOriginal price was: $120.99.$108.89Current price is: $108.89.
Other AR15 Accessories & Parts
ARMASPEC SRS BUFFER KIT H2 GEN 4
$12 offOriginal price was: $120.99.$108.89Current price is: $108.89.
Other AR15 Accessories & Parts
ARMASPEC SRS BUFFER KIT H3 GEN 4
$12 offOriginal price was: $120.99.$108.89Current price is: $108.89.
AR15 Uppers
ASCENT 5.56X45 NATO 10.5” COMPLETE UPPER RECEIVER BLACK
$46 offOriginal price was: $575.00.$529.00Current price is: $529.00.
AR15 Uppers
ASCENT 5.56X45 NATO 16” COMPLETE UPPER RECEIVER BLACK
$46 offOriginal price was: $575.00.$529.00Current price is: $529.00.
AR15 Barrels
BALLISTIC ADVANTAGE 5.56 GOVT – RIFLE BARREL 20″
$10 offOriginal price was: $195.00.$185.25Current price is: $185.25.
AR15 Uppers
BALLISTIC BA AR 15 UPPR RCVR
$15 offOriginal price was: $140.00.$124.99Current price is: $124.99.
AR15 Uppers
BANTAM 9MM LUGER COMPLETE UPPER RECEIVER 10.5” TAPER
$43 offOriginal price was: $535.00.$492.20Current price is: $492.20.