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

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

RUGGED SUPPRESSORS FIXED MOUNT – OBSIDIAN M13.5X1 LH

$65.00
RUGGED SUPPRESSORS FIXED MOUNT - OBSIDIAN M13.5X1 LH
Purchase & earn 65 points!Add to cart

SilencerCo 3-Lug Muzzle Device .578×28 .45 cal

$75.65
SilencerCo 3-Lug Muzzle Device .578x28 .45 cal
Purchase & earn 76 points!Add to cart

KEYMO FLASH HIDER 30 CALIBER M14X1LH THREADS BLACK

$70.00
KEYMO FLASH HIDER 30 CALIBER M14X1LH THREADS BLACK
Purchase & earn 70 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.