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Class 3 Parts & Accessories
ICB Firearms in St. Clair Shores, MI offers a full selection of Class 3 firearms and NFA items for enthusiasts seeking enhanced capabilities. Our collection includes legally regulated firearms like silencers, short-barreled rifles, and other NFA-compliant devices for tactical, hunting, or recreational use. We also carry Class 3 parts & accessories to upgrade or maintain your build. Whether you’re building out a custom suppressed rifle or adding an NFA device to your AR-15, you’ll find compatible components and gear. Don’t forget to explore rifles and optics to complete your setup. All Class 3 purchases require proper ATF approval—contact us for assistance navigating the process. Shop Class 3 firearms and own the most advanced platforms legally available.
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1 - 16 of 53703 posts
Class 3 Parts & Accessories
DEAD AIR XENO XERO .578X28 .45 CAL
$23 offOriginal price was: $90.00.$67.00Current price is: $67.00.
Class 3 Parts & Accessories
Energetic Armament EA22 Direct Thread Adapters 1/2×28 Titanium
$15 offOriginal price was: $94.00.$79.00Current price is: $79.00.
Class 3 Parts & Accessories
Energetic Armament EA27 Direct Thread Adapters 5/8×24 Stainless
$10 offOriginal price was: $67.00.$57.00Current price is: $57.00.
Class 3 Parts & Accessories
ENERGETIC DT ADAPTER TITANIUM 5/8-24
$15 offOriginal price was: $94.00.$79.00Current price is: $79.00.
Class 3 Parts & Accessories
ENERGETIC END CAP 5.56MM FLASH HIDER
$10 offOriginal price was: $94.00.$84.00Current price is: $84.00.
Class 3 Parts & Accessories
Gemtech 13816 5.56 ETM Muzzle Brake 1/2-28
$14 offOriginal price was: $69.00.$55.00Current price is: $55.00.
Class 3 Parts & Accessories
Gemtech 13817 7.62 ETM Muzzle Brake 5/8-24
$14 offOriginal price was: $69.00.$55.00Current price is: $55.00.
Class 3 Parts & Accessories
Gemtech 13818 7.62 ETM Flash Hider 5/8-24
$14 offOriginal price was: $69.00.$55.00Current price is: $55.00.
Class 3 Parts & Accessories
GEMTECH ADAPTER 3-LUG MP5 QD 1/2-36
$10 offOriginal price was: $91.00.$81.00Current price is: $81.00.
Class 3 Parts & Accessories
GHOST 45M 3 LUG
$29 offOriginal price was: $149.00.$120.00Current price is: $120.00.
Class 3 Parts & Accessories
GHOST 45M FIXED MOUNT M18X1
$28 offOriginal price was: $89.00.$61.00Current price is: $61.00.
Class 3 Parts & Accessories
GHOST 45M PISTON 1/2X28
$28 offOriginal price was: $89.00.$61.00Current price is: $61.00.
Class 3 Parts & Accessories
GHOST 45M PISTON M13.5X1LH
$28 offOriginal price was: $89.00.$61.00Current price is: $61.00.
Class 3 Parts & Accessories
GPS Bags GPST8006B Suppressor Cover Tactical 6″ Long
$15 offOriginal price was: $44.99.$30.00Current price is: $30.00.
