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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 64731 posts
Class 3 Parts & Accessories
ADVANCED ARMAMENT COMPANY 65011 Flange Indexing Direct-Thread Adapter
$22 offOriginal price was: $120.00.$97.99Current price is: $97.99.
Class 3 Parts & Accessories
B&T CLOSED TINE COMPENSATOR 556
$25 offOriginal price was: $125.00.$100.00Current price is: $100.00.
Class 3 Parts & Accessories
B&T Firearms BT-ASSAULT-3P DLC Stainless Steel 1/2″x28 Threads
$25 offOriginal price was: $125.00.$100.00Current price is: $100.00.
Class 3 Parts & Accessories
DEAD AIR ARMAMENT GSG 1911 THREAD ADAPTER 1/2X28
$7 offOriginal price was: $45.00.$37.99Current price is: $37.99.
Class 3 Parts & Accessories
DEAD AIR GHOST FIXED MOUNT 1/2X28
$25 offOriginal price was: $89.00.$63.99Current price is: $63.99.
Class 3 Parts & Accessories
DEAD AIR MOJAVE FIXED BARREL SPACER
$10 offOriginal price was: $39.00.$28.99Current price is: $28.99.
Class 3 Parts & Accessories
Dead Air Wolverine Collar for M24 Insert
$27 offOriginal price was: $99.00.$71.99Current price is: $71.99.
Class 3 Parts & Accessories
Dead Air Xeno Mount Omni Brake 5/8×24 Thread
$20 offOriginal price was: $89.00.$68.99Current price is: $68.99.
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: $69.00.$59.00Current price is: $59.00.
