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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 Bolts
FZ M16/M4 BCG NO HAMMER MATTE
$33 offOriginal price was: $179.99.$146.99Current price is: $146.99.
AR15 Uppers
Gemtech 13833 GVAC Upper Receiver 5.56x45mm NATO 16.10″,
$67 offOriginal price was: $839.00.$771.99Current price is: $771.99.
AR15 Parts
GG&G UNDER FOREGRIP MOUNT RAIL(UFIR)
$2 offOriginal price was: $29.25.$26.99Current price is: $26.99.
Other AR15 Accessories & Parts
GROVTEC RAIL WRAP 6″ MULTICAM BLK
$15 offOriginal price was: $53.71.$38.99Current price is: $38.99.
Other AR15 Accessories & Parts
GUNTEC AR15 EXTENDED BOLT – CATCH RELEASE BLACK
$2 offOriginal price was: $24.95.$22.99Current price is: $22.99.
AR15 Parts
GUNTEC AR15 FAKE SUPPRESSOR – SOCOM MINI 1/2X28
$18 offOriginal price was: $59.95.$41.99Current price is: $41.99.
Other AR15 Accessories & Parts
GUNTEC AR15 FAKE SUPPRESSOR – SOCOM STYLE 1/2X28
$26 offOriginal price was: $69.95.$43.99Current price is: $43.99.
Other AR15 Accessories & Parts
GUNTEC AR15 SLIM FLASH CAN – TRIDENT W/
$10 offOriginal price was: $49.95.$39.99Current price is: $39.99.
AR15 Uppers
GUNTEC AR15 STRIPPED BILLET – UPPER RECEIVER BLACK
$17 offOriginal price was: $139.95.$122.99Current price is: $122.99.
Other AR15 Accessories & Parts
GUNTEC AR9 STRIPPED BILLET – UPPER RECEIVER BLACK
$36 offOriginal price was: $149.95.$113.99Current price is: $113.99.
Other AR15 Accessories & Parts
HARRIS BIPOD TILTING & ROTATING PICATINNY ADAPTER –
$11 offOriginal price was: $81.99.$70.99Current price is: $70.99.
AR15 Uppers
HK UPPER MR556A4 5.56 16.5″ BLK
$320 offOriginal price was: $2,499.00.$2,179.00Current price is: $2,179.00.
AR15 Uppers
HK UPPER RECEIVER KIT MR556A4 11
$320 offOriginal price was: $2,499.00.$2,179.00Current price is: $2,179.00.
