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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- Class 3 Parts & Accessories- ADVANCED ARMAMENT COMPANY 65002 Ti-Rant Piston Conversion M13.5x$10 offOriginal price was: $84.99.$74.99Current price is: $74.99. 
- 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- ANECHOIC DTA 1/2X28 BLK$20 offOriginal price was: $133.00.$113.05Current price is: $113.05. 
- Class 3 Parts & Accessories- ANECHOX DTA .578X28 BLK$25 offOriginal price was: $167.00.$141.95Current price is: $141.95. 
- Class 3 Parts & Accessories- ANECHOX DTA 5/8X24 BLK$20 offOriginal price was: $133.00.$113.05Current price is: $113.05. 
- Class 3 Parts & Accessories- ANECHOX DTA 9/16X24 BLK$25 offOriginal price was: $167.00.$141.95Current price is: $141.95. 
- Class 3 Parts & Accessories- ASR 5.56 FLASH HIDER$14 offOriginal price was: $94.00.$79.90Current price is: $79.90. 
















