AR15 Parts
Gas & Brass Armory is your trusted source for AR-15 parts in Brandon, FL. Whether you're upgrading your current rifle or building a custom AR from the ground up, we stock high-quality components from top manufacturers like Aero Precision, Magpul, Radian Weapons, BCM, Geissele, and more. Shop complete uppers, stripped lowers, triggers, handguards, buffer kits, barrels, and everything you need for your next AR build. Our expert staff is here to help you build it right the first time.
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GE SUPER DUTY MOD1 5.56 11.5 URG DDC
Geissele Automatics
MSRP: $1,625.17$1,439.00Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. All of these technologies and advancements combine to bring to market a true next-gen upper for the AR-15...MSRP: $1,625.17$1,439.00 -
GE SUPER DUTY MOD1 5.56 11.5 URG BLK
Geissele Automatics
MSRP: $1,452.28$1,286.00Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. All of these technologies and advancements combine to bring to market a true next-gen upper for the AR-15...MSRP: $1,452.28$1,286.00 -
DD URG DD4 RIIIS 11.5 5.56 BLK/FDE
Daniel Defense
MSRP: $1,595.56$1,412.00The DD4 RIIIS AR15 style Upper Receiver Group is built around a 11.5 inch Cold Hammer Forged Government Profile barrel with a Daniel Defense Flash Suppressor, a GRIP-N-RIP Charging Handle, and their carbine length gas system. It features a 10.5 inch...MSRP: $1,595.56$1,412.00 -
DD M4 UPPER 300BLK 10.3 BLKT UPPER
Daniel Defense
MSRP: $1,526.63$1,351.00High quality components and precise manufacturing makes Daniel Defense Products ideal for both new shooters and experienced gun owners. The durability, reliability and excellent build quality will provide years of service you can count on.MANUFACTURER:...MSRP: $1,526.63$1,351.00 -
DD MK18 URG UPPER 556 10.3 MK18 BLK
Daniel Defense
MSRP: $1,595.56$1,412.00Use what THEY use. The Daniel Defense MK18 Upper Receiver Group features the railed forend Daniel Defense currently provides to USSOCOM and a 10.3" Cold Hammer Forged Barrel. The MK18 Rail Interface System (RIS II) features the Bolt-Up System has been...MSRP: $1,595.56$1,412.00 -
ANGSTADT MDP-9 CMPLT UPPR 9MM 6 BLK
Angstadt Arms
MSRP: $1,452.05$1,285.00High quality components and precise manufacturing makes Angstadt Arms ideal for both new shooters and experienced gun owners. The durability, reliability and excellent build quality will provide years of service you can count on.MANUFACTURER: Angstadt...MSRP: $1,452.05$1,285.00 -
Out of stock
RADIAN UPPER 14.5 223 WYLDE ODG
Radian Weapons
$1,995.00The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...$1,995.00 -
Out of stock
NOVESKE NOVESKE9 9MM 16 COMPL UPPER
Noveske
MSRP: $1,500.00$1,281.00Ideal for the discerning shooter looking to enhance their 9mm AR platform, the Noveske N9 RECON Upper features a precision-built setup ready to deliver exceptional accuracy and performance. This upper assembly boasts a 16" 416R stainless steel barrel...MSRP: $1,500.00$1,281.00 -
Out of stock
GE SUPER DTY MOD1 5.56 13.9 URG BLK
Geissele Automatics
$1,286.00Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. All of these technologies and advancements combine to bring to market a true next-gen upper for the AR-15...$1,286.00 -
Out of stock
GE SUPER DTY MOD1 5.56 14.5 URG BLK
Geissele Automatics
$1,286.00Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. All of these technologies and advancements combine to bring to market a true next-gen upper for the AR-15...$1,286.00 -
Out of stock
RADIAN BUILDER KIT 15.5 OD GREEN
Radian Weapons
MSRP: $1,581.94$1,400.00The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...MSRP: $1,581.94$1,400.00 -
Out of stock
RADIAN UPPER 9 300 BLK BROWN
Radian Weapons
MSRP: $2,067.84$1,830.00The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...MSRP: $2,067.84$1,830.00