Class 3 parts and accessories in Porter, Indiana from Great Lake Firearms. NFA-compatible mounts, hardware, and fittings. Shop online today.

Lantac Dragon 223/556 1/2-28 ASR Mount Muzzle Brake

$128.99
Lantac Dragon 223/556 1/2-28 ASR Mount Muzzle Brake
Purchase & earn 129 points!Add to cart

Surefire SOCOM Replacement Shim Kit for SF3P/SFMB/WARCOMP-556 1/2-28

$13.00
Surefire SOCOM Replacement Shim Kit for SF3P/SFMB/WARCOMP-556 1/2-28
Purchase & earn 13 points!Add to cart

Surefire SOCOM Replacement Shim Kit for SF3P/SFMB/WARCOMP-762 5/8-24

$13.00
Surefire SOCOM Replacement Shim Kit for SF3P/SFMB/WARCOMP-762 5/8-24
Purchase & earn 13 points!Add to cart

CMMG Defcan Direct Thread Adapter – Black | 1/2-28

$87.00
CMMG Defcan Direct Thread Adapter - Black | 1/2-28
Purchase & earn 87 points!Add to cart

G-Outdoors Tactical Suppressor Cover 6″ Multicam

$30.00
G-Outdoors Tactical Suppressor Cover 6" Multicam
Purchase & earn 30 points!Add to cart

Great Lake Firearms carries Class 3 parts and accessories for customers in Porter, Indiana who need NFA-compliant components. Find mounting hardware, end caps, mounts, and approved fittings to support suppressed builds and regulated setups. Pair these items with AR15 Parts or Gun Parts Kits when assembling compliant systems. For related gear, check AR Upper Parts and Optics to complete a legal, functional package. We help you find the right components and guide you toward compliant, high-quality builds. Shop Class 3 parts online today.