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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CMMG AR15 END PLATE AMBI SLING POINT
CMMG
MSRP: $12.08$9.00The CMMG AR15 End Plate Ambi Sling Point is a precision-engineered accessory designed to enhance the functionality of your AR-15 platform. Crafted by CMMG, a reputable manufacturer known for quality firearm components, this end plate serves as a reliable...MSRP: $12.08$9.00 -
CMMG AR15 BUFFER TUBE CASTLE NUT
CMMG
MSRP: $15.02$10.00The CMMG AR15 Buffer Tube Castle Nut is a precision-engineered component designed to secure the buffer tube to the lower receiver of AR-15 style rifles. Manufactured by CMMG, a reputable name in the firearms industry known for quality parts and...MSRP: $15.02$10.00 -
CMMG 9MM EJECTION PORT COVER KIT
CMMG
MSRP: $24.59$16.00The CMMG 9MM Ejection Port Cover Kit is a comprehensive accessory designed to enhance the functionality of compatible firearms. Manufactured by CMMG, this kit includes an ejection port cover, rod, brass deflector, and spring, providing all necessary...MSRP: $24.59$16.00 -
CMMG EJECTION PORT COVER KIT
CMMG
MSRP: $16.65$9.00The CMMG Ejection Port Cover Kit is a precision-engineered accessory designed to enhance the functionality and longevity of compatible firearms. Manufactured by CMMG, this kit includes a durable ejection port cover along with the necessary rod and spring...MSRP: $16.65$9.00 -
CMMG FORWARD ASSIST KIT
CMMG
MSRP: $29.78$16.00The CMMG Forward Assist Kit is designed to provide reliable and consistent forward assist functionality for compatible firearms. Manufactured by CMMG, a brand known for quality firearm components, this kit includes the forward assist assembly, spring,...MSRP: $29.78$16.00 -
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 -
CMMG PART KIT AR15 BOLT REHAB
CMMG
MSRP: $44.58$29.00The CMMG Part Kit AR15 Bolt Rehab is designed to provide a comprehensive solution for maintaining and refurbishing your AR15 bolt carrier group. Manufactured by CMMG, a trusted name in firearms components, this kit includes all essential parts needed to...MSRP: $44.58$29.00 -
CMMG AR-15 PARTS KIT FIELD REPAIR
CMMG
MSRP: $43.86$28.00The CMMG AR-15 Parts Kit Field Repair is designed to provide essential components for maintaining and restoring your AR-15 platform. Manufactured by CMMG, a respected name in firearms parts and accessories, this kit includes high-quality parts that meet...MSRP: $43.86$28.00 -
CMMG PARTS KIT AR15 UPPER PINS/SPRNG
CMMG
MSRP: $23.35$13.00The CMMG Parts Kit for AR-15 uppers includes essential pins and springs designed to meet or exceed military specifications, ensuring reliable performance and durability. Crafted by CMMG, a trusted name in firearms components, this kit provides the...MSRP: $23.35$13.00 -
CMMG PART KIT AR15 LOWER PINS/SPRING
CMMG
MSRP: $23.93$13.00The CMMG PART KIT AR15 LOWER PINS/SPRING is a precision-engineered assembly designed to meet or exceed military specifications. Crafted by CMMG, a trusted name in firearm components, this kit includes essential lower receiver pins and springs for AR15...MSRP: $23.93$13.00 -
CMC AR-15 LPK W/FLAT TRIGGER
CMC Triggers
MSRP: $280.13$225.00The CMC AR-15 LPK with Flat Trigger is a comprehensive lower parts kit designed to enhance your AR-15 build with precision and reliability. Featuring a 3.5lb single-stage flat trigger, this kit provides a crisp and consistent trigger pull, favored by...MSRP: $280.13$225.00