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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 89 posts
Small AR15 Parts
ARMASPEC AR9 FIRING PIN
$2 offOriginal price was: $16.99.$15.29Current price is: $15.29.
AR15 Parts
ARMASPEC B1 EXTENDED MAG – RELEASE FDE
$2 offOriginal price was: $19.99.$17.99Current price is: $17.99.
Other AR15 Accessories & Parts
ARMASPEC B2 EXTENDED MAG – RELEASE SKELETONIZED FDE
$2 offOriginal price was: $21.99.$19.79Current price is: $19.79.
Other AR15 Accessories & Parts
ARMASPEC CARB BFF TUBE KIT W/ EP/CN
$4 offOriginal price was: $38.99.$35.09Current price is: $35.09.
Small AR15 Parts
ARMASPEC SPARE PARTS KIT – FOR AR15 &
$1 offOriginal price was: $15.99.$15.19Current price is: $15.19.
Other AR15 Accessories & Parts
ARMASPEC SRS BUFFER KIT BB GEN 4
$12 offOriginal price was: $120.99.$108.89Current price is: $108.89.
Small AR15 Parts
ARMASPEC SRS BUFFER KIT C GEN 4
$12 offOriginal price was: $120.99.$108.89Current price is: $108.89.
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 H3 GEN 4
$12 offOriginal price was: $120.99.$108.89Current price is: $108.89.
AR15 Uppers
ASCENT 5.56X45 NATO 16” COMPLETE UPPER RECEIVER BLACK
$46 offOriginal price was: $575.00.$529.00Current price is: $529.00.
AR15 Uppers
ATI UPPER 450BUSH 16 KEYMOD 15 RAIL
$175 offOriginal price was: $499.95.$324.99Current price is: $324.99.
AR15 Stocks, Forends, Forearms
B5 BRAVO STK FIXED MIL-SPEC BLK
$3 offOriginal price was: $56.00.$53.20Current price is: $53.20.
AR15 Stocks, Forends, Forearms
B5 BRAVO STK MIL-SPEC BLK
$3 offOriginal price was: $61.00.$57.95Current price is: $57.95.
AR15 Stocks, Forends, Forearms
B5 BRAVO STK MIL-SPEC CB
$3 offOriginal price was: $61.00.$57.95Current price is: $57.95.