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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RISE OS KIT SPARE AR-15 PARTS
Rise Armament
MSRP: $26.38$16.00The RISE OS Kit Spare AR-15 Parts, manufactured by Rise Armament, is a comprehensive collection of essential components designed to assist with maintenance and repair of AR-15 rifles. This kit includes a variety of small but critical parts such as...MSRP: $26.38$16.00 -
RADIAN ULTRALIGHT QD AR15 ENDPLATE
Radian Weapons
MSRP: $55.93$40.00The Radian Weapons Ultralight QD AR15 Endplate offers a precision-engineered solution for AR15 and M16 pattern rifles. Crafted from billet 7075-T6 aluminum, this endplate combines exceptional strength with minimal weight, tipping the scales at just 6.5...MSRP: $55.93$40.00 -
PHASE5 SLOPED QD END PLATE BLK
Phase 5 Weapon Systems
MSRP: $62.99$45.00The Phase 5 Weapon Systems Sloped Quick Disconnect End Plate (SQD-EP) is engineered as a direct replacement for the standard AR15/M4 carbine end plate. This end plate is designed to be lighter while maintaining the structural integrity required for...MSRP: $62.99$45.00 -
MAGPUL B.A.D. LEVER BLK
Magpul Industries
MSRP: $43.82$32.00The MAGPUL B.A.D. Lever BLK is a precision-engineered accessory designed to enhance the functionality of AR15 and M16 platforms. Manufactured by Magpul Industries, this bolt catch lever extends a paddle to the right side of the rifle, enabling quicker...MSRP: $43.82$32.00 -
MAGPUL ALUM ENHANCED TRIGGER GRD
Magpul Industries
MSRP: $30.52$22.00The Magpul ALUM Enhanced Trigger Guard is a precision-engineered aluminum replacement designed specifically for the AR-15/M4 platform. Crafted by Magpul Industries, this trigger guard offers a durable, lightweight alternative to standard polymer models,...MSRP: $30.52$22.00 -
MAGPUL MOE ENHANCED TRIG GUARD ODG
Magpul Industries
MSRP: $15.59$10.00The Magpul MOE Enhanced Trigger Guard in Olive Drab Green is a polymer replacement designed specifically for AR15 and M4 platforms. Engineered for durability and ease of installation, this trigger guard secures to the lower receiver using three set...MSRP: $15.59$10.00 -
MAGPUL MOE ENHANCED TRIG GUARD FDE
Magpul Industries
MSRP: $15.59$10.00The MAGPUL MOE Enhanced Trigger Guard FDE by Magpul Industries is a robust polymer upgrade designed specifically for AR-15 and M4 platforms. Unlike traditional trigger guards, this model installs easily without the need for specialized tools or hammering...MSRP: $15.59$10.00 -
MAGPUL MOE ENHANCED TRIG GUARD BLK
Magpul Industries
MSRP: $15.59$10.00The Magpul MOE Enhanced Trigger Guard Black (Model MAG1186-BLK) is a precision-engineered polymer upgrade designed for AR-style rifles. This drop-in replacement improves upon the standard trigger guard by offering an enlarged, ergonomic shape that...MSRP: $15.59$10.00 -
LUTH AR BUFFER RETAINER W/SPG 10PK
Luth-AR
MSRP: $35.52$26.00The Luth-AR Buffer Retainer with Spring 10-Pack is an essential component designed to securely hold the buffer in place within the buffer tube under spring tension. Manufactured by Luth-AR, this set of retainers ensures reliable performance and...MSRP: $35.52$26.00 -
LUTH AR FORWARD ASSIST ASSEMBLY
Luth-AR
MSRP: $22.11$14.00The LUTH AR Forward Assist Assembly by Luth-AR is a precision-engineered component designed to enhance the functionality of AR-style rifles. This assembly provides a reliable means to manually ensure the bolt is fully seated in the chamber, contributing...MSRP: $22.11$14.00 -
LUTH AR AMBI SAFETY SELECTOR AR15
Luth-AR
MSRP: $38.15$28.00The LUTH AR AMBI SAFETY SELECTOR AR15 by Luth-AR is a precision-engineered ambidextrous safety selector designed for AR-15 platforms. Constructed with durable materials and featuring a Manganese Phosphate finish, this selector offers enhanced corrosion...MSRP: $38.15$28.00 -
LUTH AR PADDLE OVERSIZED BOLT CATCH
Luth-AR
MSRP: $28.88$21.00The Luth-AR Paddle Oversized Bolt Catch is designed to enhance the functionality of AR-style rifles by providing a larger surface area for bolt manipulation. This component allows for more efficient and confident bolt release and locking, improving...MSRP: $28.88$21.00