Lower Parts
Build or upgrade your rifle with quality AR-15 lower parts from Gas & Brass Armory in Brandon, FL. We offer complete lower parts kits (LPKs), individual components, upgraded triggers, buffer retainers, takedown pins, and more. Whether you’re doing a full lower build or fine-tuning your trigger and controls, we carry reliable parts from Aero Precision, CMC, Rise Armament, and other trusted brands. Everything you need to finish your lower, all in one place.
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STRIKE ENHNCD CASTLE NUT W/QD BLK
Strike Industries
MSRP: $81.13$58.00The Strike Industries STRIKE ENHNCD CASTLE NUT W/QD BLK is a precision-engineered component designed to enhance the stability and functionality of AR-style rifles. This enhanced castle nut features an extended design that provides increased thread...MSRP: $81.13$58.00 -
CMMG BOLT ASSEMBLY AR15
CMMG
MSRP: $89.60$59.00The CMMG Bolt Assembly for AR-15 rifles is engineered to meet the high standards expected by firearm enthusiasts and professionals alike. Crafted by CMMG, a trusted name in firearm components, this bolt assembly features a matte black finish that...MSRP: $89.60$59.00 -
CMMG PARTS KIT AR15 SURVIVAL KIT
CMMG
MSRP: $72.24$52.00The CMMG Parts Kit AR15 Survival Kit offers a comprehensive selection of essential components designed to support the maintenance and repair of AR15 rifles. Manufactured by CMMG, a trusted name in firearms parts, this kit provides durable, precisely...MSRP: $72.24$52.00 -
Out of stock
LANTAC RPS END PLATE & CASTLE NUT
LanTac USA LLC
MSRP: $76.99$55.00The LANTAC RPS End Plate & Castle Nut by LanTac USA LLC is engineered to provide a reliable and durable solution for firearm assembly and customization. Crafted with precision and finished with a robust nitride coating, this end plate and castle nut...MSRP: $76.99$55.00 -
Out of stock
KAK AR-15 LOWER PARTS KIT COMPLETE
KAK Industry
MSRP: $71.39$51.00The KAK Industry AR-15 Lower Parts Kit Complete is a comprehensive assembly designed to equip your AR-15 lower receiver with all essential components. Crafted by KAK Industry, a brand recognized for its dedication to quality and American-made firearm...MSRP: $71.39$51.00