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
ALEX STANDARD UPPER 17HMR FLUTED BARREL
$25 offOriginal price was: $979.48.$953.99Current price is: $953.99.
AR15 Uppers
ALEXANDER AR15 DIY 16″ UPPER – KIT 6.5
$155 offOriginal price was: $762.95.$607.99Current price is: $607.99.
AR15 Uppers
ALEXANDER AR15 STANDARD UPPER
$267 offOriginal price was: $961.95.$694.99Current price is: $694.99.
AR15 Uppers
ALEXANDER UPPER RECEIVER AR15 – PISTOL 50 BEOWULF
$91 offOriginal price was: $918.95.$827.99Current price is: $827.99.
Other AR15 Accessories & Parts
Amend2 556MOD2B1520 MOD-2 15rd 5.56×45 NATO Fits AR15/M4/M16
$3 offOriginal price was: $16.49.$13.49Current price is: $13.49.
AR15 Lowers
ANDERSON AM9 9MM PARTIAL LOWER
$47 offOriginal price was: $252.49.$205.99Current price is: $205.99.
AR15 Lowers
ANDERSON COMPLETE AR-15 LOWER – RECEIVER BLACK
$30 offOriginal price was: $181.00.$150.99Current price is: $150.99.
AR15 Bolts
ANGSTADT AR15 BCG 556NATO BLK
$15 offOriginal price was: $139.99.$125.00Current price is: $125.00.
AR15 Uppers
Angstadt Arms 6″ 9mm Luger Complete Upper Assembly
$60 offOriginal price was: $599.99.$539.99Current price is: $539.99.
AR15 Bolts
Angstadt Arms AA09BCGNIT Bolt Carrier Assembly 9mm QPQ
$21 offOriginal price was: $179.99.$159.00Current price is: $159.00.
















