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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RADIAN ULTRALIGHT QD AR15 ENDPLATE
Radian Weapons
MSRP: $55.93$40.00Announcing the Ultralight QD Endplate for AR15/M16 pattern rifles. Weighing only 6.5 grams, the endplate is machined from billet 7075-T6 aluminum with milspec Type III anodized finish and a press-fit Titanium QD sling swivel cup. This combination of...MSRP: $55.93$40.00 -
PHASE5 SLOPED QD END PLATE BLK
Phase 5 Weapon Systems
MSRP: $62.99$45.00The Phase 5 Sloped Quick Disconnect End Plate (SQD-EP) was designed to replace the standard AR15/M4 carbine end plate. While still meeting the requirements of the original design, the SQD-EP is lighter and QD Swivel compatible. The QD mount is at a 30...MSRP: $62.99$45.00 -
MAGPUL B.A.D. LEVER BLK
Magpul Industries
MSRP: $43.82$32.00Designed to considerably improve the speed and efficiency of the AR15/M16 bolt catch, the B.A.D. Lever quickly addresses reloading and malfunction clearance shortcomings of AR15/M16 platforms by extending a paddle to the right side of the weapon,...MSRP: $43.82$32.00 -
MAGPUL ALUM ENHANCED TRIGGER GRD
Magpul Industries
MSRP: $30.52$22.00The Enhanced Trigger Guard is a black anodized aluminum drop in replacement for the AR15/M4 weapons platform. It features a shallow V shape for better use of gloves in tactical shooting or cold weather operations. The Enhanced Trigger Guard is...MSRP: $30.52$22.00 -
MAGPUL MOE ENHANCED TRIG GUARD ODG
Magpul Industries
MSRP: $15.59$10.00The MOE (Magpul Original Equipment) Enhanced Trigger Guard is a polymer drop-in replacement for the AR15 / M4 weapons platform. This upgraded trigger guard is easily installed without the use of specialized tools, using three set screws to secure it to...MSRP: $15.59$10.00 -
MAGPUL MOE ENHANCED TRIG GUARD FDE
Magpul Industries
MSRP: $15.59$10.00The MOE (Magpul Original Equipment) Enhanced Trigger Guard is a polymer drop-in replacement for the AR15 / M4 weapons platform. This upgraded trigger guard is easily installed without the use of specialized tools, using three set screws to secure it to...MSRP: $15.59$10.00 -
MAGPUL MOE ENHANCED TRIG GUARD BLK
Magpul Industries
MSRP: $15.59$10.00The MOE (Magpul Original Equipment) Enhanced Trigger Guard is a polymer drop-in replacement for the AR15 / M4 weapons platform. This upgraded trigger guard is easily installed without the use of specialized tools, using two set screws to secure it to the...MSRP: $15.59$10.00 -
LUTH AR TAKEDOWN PIN DETENT W/SPG 10
Luth-AR
MSRP: $31.78$20.00LUTH-AR 10-Pack of takedown pin detents and detent springs.MANUFACTURER: Luth-ARMPN: LR-15A-10MODEL: 0Type: PartMSRP: $31.78$20.00 -
LUTH AR BUFFER RETAINER W/SPG 10PK
Luth-AR
MSRP: $35.52$26.00If you are working on several AR's and are constantly in need of buffer retainers, this 10 pack is for you. The Buffer retainer is designed to retain the buffer while under spring tension in the buffer tube.MANUFACTURER: Luth-ARMPN: LR-01A-10MODEL:...MSRP: $35.52$26.00 -
LUTH AR FORWARD ASSIST ASSEMBLY
Luth-AR
MSRP: $22.11$14.00Forward assist assembly for AR-15.MANUFACTURER: Luth-ARMPN: UR-08-RMODEL: 0Type: PartMSRP: $22.11$14.00 -
LUTH AR EJECTION PORT COVER ASSEMBLY
Luth-AR
MSRP: $11.62$8.00Ejection Port Cover Assembly for AR-15.MANUFACTURER: Luth-ARMPN: UR-05AMODEL: 0Type: PartMSRP: $11.62$8.00 -
LUTH AR AMBI SAFETY SELECTOR AR15
Luth-AR
MSRP: $38.15$28.00Ambidextrous Mil-Spec AR-15 safety selector with Manganese Phosphate finish.MANUFACTURER: Luth-ARMPN: LR-08BMODEL: 0Type: PartColor: BlackMSRP: $38.15$28.00