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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 64682 posts
Class 3 Parts & Accessories
SilencerCo AC2629 Alpha Direct Thread Mount Fits M13x0.75
$13 offOriginal price was: $84.00.$71.40Current price is: $71.40.
Class 3 Parts & Accessories
SilencerCo AC2632 ASR Alpha Mount Adapter For Omega
$21 offOriginal price was: $139.00.$118.15Current price is: $118.15.
Class 3 Parts & Accessories
SilencerCo AC4736 Charlie AC4736 Front Cap 224 Cal
$14 offOriginal price was: $94.00.$79.90Current price is: $79.90.
Class 3 Parts & Accessories
SilencerCo AC4745 Charlie Direct Thread Mount Fits M13x0.75
$15 offOriginal price was: $99.00.$84.15Current price is: $84.15.
Class 3 Parts & Accessories
SilencerCo AC4747 Charlie Direct Thread Mount Fits M18X1
$15 offOriginal price was: $99.00.$84.15Current price is: $84.15.
Class 3 Parts & Accessories
SilencerCo AC4748 Charlie Direct Thread Mount Fits M18X1.5
$15 offOriginal price was: $99.00.$84.15Current price is: $84.15.
Class 3 Parts & Accessories
SILENCERCO AC4749 CHARLIE COUPLER RING
$7 offOriginal price was: $49.00.$41.65Current price is: $41.65.
Class 3 Parts & Accessories
SilencerCo AC4757 Bravo Direct Thread Mount Fits 3/4″x20
$13 offOriginal price was: $89.00.$75.65Current price is: $75.65.
Class 3 Parts & Accessories
SilencerCo AC4766 ASR Muzzle Brake Black Nitride 9/16×24
$14 offOriginal price was: $94.00.$79.90Current price is: $79.90.
Class 3 Parts & Accessories
SilencerCo AC5320 Bravo Direct Thread Mount 1/2″-28 tpi,
$17 offOriginal price was: $114.00.$96.90Current price is: $96.90.
Class 3 Parts & Accessories
SilencerCo AC5378 Corset Suppressor Cover Kevlar/Nomex Black
$19 offOriginal price was: $129.00.$109.65Current price is: $109.65.
Class 3 Parts & Accessories
SilencerCo AC59 Osprey/Octane Piston .5x28XL 9mm Stainless Steel
$13 offOriginal price was: $89.00.$75.65Current price is: $75.65.
Class 3 Parts & Accessories
SilencerCo AC626 Piston 17-4 Stainless Steel Multi-Caliber 13.5×1
$13 offOriginal price was: $89.00.$75.65Current price is: $75.65.
Class 3 Parts & Accessories
SilencerCo AC668 Bravo Direct Thread Mount Fits 3/4″x24
$13 offOriginal price was: $89.00.$75.65Current price is: $75.65.
Class 3 Parts & Accessories
SilencerCo AC669 Bravo Direct Thread Mount 5/8″-24 tpi,
$13 offOriginal price was: $89.00.$75.65Current price is: $75.65.
Class 3 Parts & Accessories
SilencerCo AC822 Alpha Direct Thread Mount Fits 9/16″x24
$13 offOriginal price was: $84.00.$71.40Current price is: $71.40.
