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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LBE AR MAG CATCH ASSEMBLY
LBE Unlimited
MSRP: $8.30$6.00The LBE mag catch assembly includes the spring, mag catch and mag release button. Made in the USA.MANUFACTURER: LBE UnlimitedMPN: ARMCASYMODEL: ARType: KitColor: BlackMSRP: $8.30$6.00 -
LBE AR15 END PLATE BLK
LBE Unlimited
MSRP: $9.65$6.00The LBE AR-15 Receiver End Plate is made of steel and has a Magnesium Phosphate finish. Made in the USA.MANUFACTURER: LBE UnlimitedMPN: ARLPLTMODEL: AR-15Finish: Manganese PhosphateType: End PlateMSRP: $9.65$6.00 -
LBE AR CASTLE NUT
LBE Unlimited
MSRP: $10.63$7.00The LBE AR-15 Castle Nut is made of 4140 steel and has a Magnesium Phosphate finish. Made in the USA.MANUFACTURER: LBE UnlimitedMPN: ARCNUTMODEL: Castle NutFinish: Manganese PhosphateType: Castle NutMSRP: $10.63$7.00 -
LBE AR TRIGGER GUARD
LBE Unlimited
MSRP: $6.91$5.00Standard AR15 Trigger Guard.MANUFACTURER: LBE UnlimitedMPN: AR15TGMODEL: 0Description: AluminumType: Trigger GuardMSRP: $6.91$5.00 -
LBE AR ESSENTIALS KIT
LBE Unlimited
MSRP: $18.89$12.00LBE US Made AR essentials kits are appropriate for your next build and great to have on hand to service your favorite AR.MANUFACTURER: LBE UnlimitedMPN: ARESNTLMODEL: AR Essentials KitType: PartMSRP: $18.89$12.00 -
LBE AR SWIVEL ASSEMBLY
LBE Unlimited
MSRP: $11.32$7.00AR Swivel Assembly, included is a Mil Spec Swivel and RivetMANUFACTURER: LBE UnlimitedMPN: ARSWIVMODEL: AR Swivel AssemblyType: PartMSRP: $11.32$7.00 -
LBE AR FRONT SIGHT TAPER PINS
LBE Unlimited
MSRP: $7.34$5.00AR Front Sight Taper Pins, US Made. Pack of 2MANUFACTURER: LBE UnlimitedMPN: ARTPSMODEL: AR Front Sight Taper PinsType: PartMSRP: $7.34$5.00 -
LBE AR15 BOLT CATCH PLUNGER 20PK
LBE Unlimited
MSRP: $13.81$9.00Pack of 20 AR-15 bolt catch plungers. Made in the USA.MANUFACTURER: LBE UnlimitedMPN: ARBCPL20PKMODEL: 0Description: AR-15 Bolt Catch PlungerType: PartMSRP: $13.81$9.00 -
LBE AR15 SELECTOR DETENT 20PK
LBE Unlimited
MSRP: $16.57$11.00This is a 20-pack of AR-15 selector detents made of 12L14 steel. Made in the USA.MANUFACTURER: LBE UnlimitedMPN: ARSLDT20PKMODEL: 0Description: DetentType: PartMSRP: $16.57$11.00 -
LANTAC RPS END PLATE & CASTLE NUT
LanTac USA LLC
MSRP: $76.99$55.00High quality components and precise manufacturing make Lantac parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on.MANUFACTURER: LanTac...MSRP: $76.99$55.00 -
KAK AR-15 LPK BASIC AMBI BUILD KIT
KAK Industry
MSRP: $44.79$32.00Everything you need for your custom build, and nothing you don't. Just the basics from KAK.MANUFACTURER: KAK IndustryMPN: AR15-LP-KT-03MODEL: AR-15 LPKMSRP: $44.79$32.00 -
KAK AR-15 LOWER PARTS KIT NO FCG
KAK Industry
MSRP: $44.79$32.00KAK Industry was founded and incorporated in 2011 by Kurt Kosman to address a gap in the firearms market for quality, American-Made components at affordable, sustainable prices.MANUFACTURER: KAK IndustryMPN: 506-1015-009MODEL: AR-15 Lower Parts...MSRP: $44.79$32.00