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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B5 END PLATE BLK
B5 Systems
MSRP: $31.35$19.00The B5 Systems Quick Disconnect End Plate provides users with an alternative attachment point for single point sling use. The limited rotation one piece steel construction allows for proper staking and a lifetime of service. The milspec manganese...MSRP: $31.35$19.00 -
ADV TECH AR15 CASTLE NUT
ATI Outdoors
MSRP: $12.47$8.00High quality components and precise manufacturing make Advance Tech 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: ATI...MSRP: $12.47$8.00 -
ADV TECH AR15 GRIP SCREW/WASHER
ATI Outdoors
MSRP: $4.64$3.00This grip screw set can be used for a new build or as a replacement for that frustrating OEM flat head screw. It comes with a steel 1/4-28 x 1" Hex bolt and a steel star washer.MANUFACTURER: ATI OutdoorsMPN: A.5.10.2548MODEL: 0Description: AR Pistol Grip...MSRP: $4.64$3.00 -
ADV TECH LOP QUICK STOP
ATI Outdoors
MSRP: $22.51$15.00High quality components and precise manufacturing make Advance Tech 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: ATI...MSRP: $22.51$15.00 -
Out of stock
NOVESKE QUICK DETACH END PLATE BLK
Noveske
MSRP: $41.64$30.00Carbine Receiver End Plate with QD Sling Swivel Attachment made by Noveske.MANUFACTURER: NoveskeMPN: 05000094MODEL: Quick Detach MountDescription: Quick DetachType: MountColor: BlackMSRP: $41.64$30.00 -
Out of stock
SEEKINS BILLET AR TRIGGER GUARD BLK
Seekins Precision
MSRP: $33.60$24.00The Seekins Precision Billet Trigger Guard is a functional upgrade for any Mil-Spec lower receiver. Machined from a solid piece of 6061-T6, the profile and size accommodate winter gloves while maintaining precise trigger control.MANUFACTURER: Seekins...MSRP: $33.60$24.00 -
Out of stock
LUTH AR PADDLE OVERSIZED BOLT CATCH
Luth-AR
MSRP: $28.88$21.00The Paddle Oversize Bolt Catch allows easy and rapid bolt manipulation. The large paddle facilitates positive bolt release and locking.MANUFACTURER: Luth-ARMPN: LR-11LMODEL: 0Type: PartColor: BlackMSRP: $28.88$21.00 -
Out of stock
LUTH AR FIELD REPAIR KIT AR15
Luth-AR
MSRP: $39.47$29.00Keep your AR running smoothly with Luth-AR's Field Repair Kit. It includes the most common parts you need to fix common issues and get your rifle back to peak performance. With durable materials and easy-to-use instructions, this kit is a must-have for...MSRP: $39.47$29.00 -
Out of stock
LUTH AR EXTRACTOR O RING 10-PACK
Luth-AR
MSRP: $17.04$11.00High quality components and precise manufacturing make LuthAR 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:...MSRP: $17.04$11.00 -
Out of stock
LUTH AR 308 EJECTION PORT COVER ASSY
Luth-AR
MSRP: $13.94$9.00High quality components and precise manufacturing make LuthAR 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:...MSRP: $13.94$9.00 -
Out of stock
LBE AR 308 DELTA RING ASSEMBLY
LBE Unlimited
MSRP: $32.79$20.00The LBE 308 Delta Ring Assembly includes the slip ring, snap ring and weld spring. Made in the USA.MANUFACTURER: LBE UnlimitedMPN: ARDRA308MODEL: AR 308Description: Delta Ring AssemblyType: PartColor: BlackMSRP: $32.79$20.00 -
Out of stock
LBE AK RETAINING PLATE
LBE Unlimited
MSRP: $6.91$4.00US Made AK Retaining Plate, use in place of the shepard hook spring.MANUFACTURER: LBE UnlimitedMPN: AKRPLTMODEL: AK Retaining PlateType: PartMSRP: $6.91$4.00