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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Yankee Hill Machine

Class 3 Parts & Accessories
Yankee Hill 2050 3-Lug HD 1-3/8″-24 tpi Aluminum/Stainless
$30 off
Original price was: $159.95.Current price is: $130.25.
Out of stock. Want to be notified?
Yankee Hill Machine

Class 3 Parts & Accessories
Yankee Hill 218924 HUB Direct Thread Mount 5/8″-24
$19 off
Original price was: $89.95.Current price is: $70.75.
Out of stock. Want to be notified?
Yankee Hill Machine

Class 3 Parts & Accessories
Yankee Hill 310228A Phantom Flash Hider Black Phosphate
$23 off
Original price was: $119.95.Current price is: $97.00.
Out of stock. Want to be notified?
Yankee Hill Machine

Class 3 Parts & Accessories
YANKEE HILL MACHINE COMPANY HUB DIRECT THREAD MT
$19 off
Original price was: $89.95.Current price is: $70.75.
Out of stock. Want to be notified?
Yankee Hill Machine

Class 3 Parts & Accessories
YANKEE HILL MACHINE COMPANY SIDEWINDER PISTON 9MM 1/2X28
$15 off
Original price was: $84.95.Current price is: $69.75.
Out of stock. Want to be notified?
Yankee Hill Machine

Class 3 Parts & Accessories
YHM 1/2″-28 CRBNE ADPTR SDWNR M2 BLK
$6 off
Original price was: $40.95.Current price is: $34.75.
Out of stock. Want to be notified?
Yankee Hill Machine

Class 3 Parts & Accessories
YHM 5.56 QD MUZZLE BRAKE 1/2X28
$23 off
Original price was: $119.95.Current price is: $97.00.
Out of stock. Want to be notified?
Yankee Hill Machine

Class 3 Parts & Accessories
YHM 5/8″-24 CRBNE ADPTR SDWNR M2 BLK
$6 off
Original price was: $40.95.Current price is: $34.75.
Out of stock. Want to be notified?
Yankee Hill Machine

Class 3 Parts & Accessories
YHM NELSON PISTON .578″ X 28
$14 off
Original price was: $80.95.Current price is: $67.25.
Out of stock. Want to be notified?
Yankee Hill Machine

Class 3 Parts & Accessories
YHM NIELSON BOOSTER ASSY NO PISTON
$22 off
Original price was: $119.95.Current price is: $97.75.
Out of stock. Want to be notified?
Yankee Hill Machine

Class 3 Parts & Accessories
YHM PHANTOM QD ADAPTER MOUNT
$15 off
Original price was: $109.95.Current price is: $94.75.
Out of stock. Want to be notified?