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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LUTH AR EXTRACTOR O RING 10-PACK
Luth-AR
MSRP: $17.04$11.00The LUTH AR EXTRACTOR O RING 10-PACK from Luth-AR offers a reliable solution for firearm maintenance and component replacement. Designed with precision, these extractor O-rings provide a consistent fit to ensure proper function within the firearm's...MSRP: $17.04$11.00 -
LUTH AR 308 EJECTION PORT COVER ASSY
Luth-AR
MSRP: $13.94$9.00The LUTH AR 308 Ejection Port Cover Assembly by Luth-AR is designed to provide a reliable and durable solution for AR-10 style rifles chambered in .308. Crafted with precision engineering, this ejection port cover helps protect the internal components of...MSRP: $13.94$9.00 -
LBE AK PISTOL GRIP SCREW AND BUSHING
LBE Unlimited
MSRP: $12.42$8.00The LBE AK Pistol Grip Screw and Bushing from LBE Unlimited is a precision-engineered replacement part designed to fit AK-style pistols. Crafted entirely from metal, this component features a durable Mag Phosphate finish that provides enhanced corrosion...MSRP: $12.42$8.00 -
LBE AR MAG CATCH ASSEMBLY
LBE Unlimited
MSRP: $8.30$6.00The LBE AR Mag Catch Assembly by LBE Unlimited is a complete replacement kit designed for AR-style rifles. This assembly includes the essential components: the magazine catch, release button, and spring, ensuring reliable magazine retention and smooth...MSRP: $8.30$6.00 -
LBE AR 308 DELTA RING ASSEMBLY
LBE Unlimited
MSRP: $32.79$24.00The LBE AR 308 Delta Ring Assembly by LBE Unlimited is a precision-engineered component designed to enhance the functionality and durability of AR-10 style rifles chambered in .308. This assembly includes the slip ring, snap ring, and weld spring, all...MSRP: $32.79$24.00 -
LBE AR15 END PLATE BLK
LBE Unlimited
MSRP: $9.65$6.00The LBE AR15 End Plate in black is a durable component designed by LBE Unlimited to enhance the structural integrity of AR-15 platform rifles. Crafted from high-quality steel, this end plate features a robust manganese phosphate finish that provides...MSRP: $9.65$6.00 -
LBE AR CASTLE NUT
LBE Unlimited
MSRP: $10.63$7.00The LBE AR CASTLE NUT by LBE Unlimited is a precision-engineered component designed to securely fasten the buffer tube to the receiver extension on AR-style rifles. Crafted from durable 4140 steel, this castle nut offers excellent strength and...MSRP: $10.63$7.00 -
LBE AR TRIGGER GUARD
LBE Unlimited
MSRP: $6.91$5.00The LBE AR Trigger Guard by LBE Unlimited is a precision-engineered component designed to provide reliable protection and support for the trigger mechanism of AR-style rifles. Crafted from high-quality aluminum, this trigger guard offers durability while...MSRP: $6.91$5.00 -
LBE AR ESSENTIALS KIT
LBE Unlimited
MSRP: $18.89$12.00The LBE AR Essentials Kit by LBE Unlimited is designed to provide key components for assembling or maintaining AR-style rifles. This comprehensive kit includes carefully selected parts that are fundamental for building or servicing your AR platform,...MSRP: $18.89$12.00 -
LBE AR SWIVEL ASSEMBLY
LBE Unlimited
MSRP: $11.32$7.00The LBE AR Swivel Assembly by LBE Unlimited is a reliable replacement component designed to enhance the functionality and versatility of AR-style rifles. This assembly includes a Mil-Spec swivel and a rivet, ensuring sturdy attachment points for slings...MSRP: $11.32$7.00 -
LBE AR FRONT SIGHT TAPER PINS
LBE Unlimited
MSRP: $7.34$5.00The LBE Unlimited AR Front Sight Taper Pins are precision-engineered components designed for securing the front sight post on AR-style rifles. Manufactured in the USA, these taper pins offer reliable fitment and durability, ensuring consistent sight...MSRP: $7.34$5.00 -
LBE AR15 BOLT CATCH PLUNGER 20PK
LBE Unlimited
MSRP: $13.81$9.00The LBE Unlimited AR15 Bolt Catch Plunger 20PK offers a reliable solution for maintaining or upgrading your AR-15 rifle. Designed specifically for the AR-15 platform, these bolt catch plungers ensure proper function of the bolt catch mechanism,...MSRP: $13.81$9.00