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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Out of stock
COLT BOLT REPAIR KIT M4/AR15
Colt's Manufacturing
MSRP: $32.34$19.60COLT BOLT REPAIR KIT M4/AR15MANUFACTURER: Colt's ManufacturingMPN: SPK403979MODEL: Bolt Repair KitType: KitColor: BlackMSRP: $32.34$19.60 -
CMMG FORWARD ASSIST KIT
CMMG
MSRP: $29.78$18.90Includes forward assist assembly, spring, and installation pin.MANUFACTURER: CMMGMPN: 55BA556MODEL: 0Type: KitColor: BlackMSRP: $29.78$18.90 -
CMC AR-15 LPK W/CURVED TRIGGER
CMC Triggers
MSRP: $280.13$224.10Enhanced with a 3.5lb Single Stage Curved Trigger, this kit is a great addition to your AR15 build. From amateur gun builder to seasoned expert gun smith, this lower parts kit is for you. NOTE: Grip NOT included. Kit Contains 3.5lb Single Stage Trigger 1...MSRP: $280.13$224.10 -
B5 TRIGGER GUARD COMPOSITE BLK
B5 Systems
MSRP: $11.76$7.13The B5 Systems Bravo trigger guard offers a drop in upgrade over the standard AR trigger guard. The enlarged profile allows for glove use in cold weather or tactical operation. Proudly made in the USA.MANUFACTURER: B5 SystemsMPN: PTG-1127MODEL: 0Type:...MSRP: $11.76$7.13 -
B5 TRIGGER GUARD FDE
B5 Systems
MSRP: $31.35$19.00The B5 Systems Bravo trigger guard offers a drop in upgrade over the standard AR trigger guard. The enlarged profile allows for glove use in cold weather or tactical operation. The trigger guard also maintains the original swing down function for use...MSRP: $31.35$19.00 -
B5 TRIGGER GUARD BLK
B5 Systems
MSRP: $31.35$19.00The B5 Systems Bravo trigger guard offers a drop in upgrade over the standard AR trigger guard. The enlarged profile allows for glove use in cold weather or tactical operation. The trigger guard also maintains the original swing down function for use...MSRP: $31.35$19.00