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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Out of stock
GE URG-I NC 556NATO 14.5 BLK/DDC
Geissele Automatics
$1,525.00For more than 50 years the famed silhouette of the M16/M4 has only had one major and several minor changes. Barrel lengths and buttstocks have changed, but more or less the evolution of America's right arm has proceeded apace with each generation of...$1,525.00 -
Out of stock
GE SUPER DTY MOD1 5.56 13.9 URG DDC
Geissele Automatics
$1,450.00Manufactured 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...$1,450.00 -
Out of stock
GE SUPER DTY MOD1 5.56 13.9 URG BLK
Geissele Automatics
$1,325.00Manufactured 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...$1,325.00 -
Out of stock
GE SUPER DTY MOD1 5.56 14.5 URG DDC
Geissele Automatics
$1,450.00Manufactured 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...$1,450.00 -
Out of stock
GE SUPER DTY MOD1 5.56 14.5 URG BLK
Geissele Automatics
$1,325.00Manufactured 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...$1,325.00 -
Out of stock
GE SUPER DUTY MOD1 5.56 16 URG DDC
Geissele Automatics
$1,450.00Manufactured 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...$1,450.00 -
Out of stock
GE SUPER DUTY MOD1 5.56 16 URG BLK
Geissele Automatics
$1,325.00Manufactured 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...$1,325.00 -
Out of stock
DD M4A1 FSP UPR RCVR 14.5 PW 556 FDE
Daniel Defense
MSRP: $1,619.00$1,551.00This Daniel Defense M4A1 FSP AR15 style Upper Receiver Group was built for customers wanting a firearm inspired by USSOCOM SOPMOD Block II. This upper features the M4A1 FSP RIS II picatinny quad rail in Flat Dark Earth, a 14.5" M4 profile barrel,...MSRP: $1,619.00$1,551.00 -
Out of stock
DD M4A1 UPPER URG 14.5 PB 556 FDE
Daniel Defense
MSRP: $1,612.00$1,544.00The Daniel Defense M4A1 Upper Receiver Group features the M4A1 Rail Interface System (RIS II), which has been in use by US Special Operations Command (SOCOM) for the SOPMOD II Weapons System since 2005. This two-piece, free-floating rail system allows...MSRP: $1,612.00$1,544.00 -
Out of stock
RADIAN BUILDER KIT 14 OD GREEN
Radian Weapons
MSRP: $1,536.74$1,360.00The 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: $1,536.74$1,360.00 -
Out of stock
RADIAN BUILDER KIT 14 BROWN
Radian Weapons
MSRP: $1,536.74$1,360.00The 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: $1,536.74$1,360.00 -
Out of stock
RADIAN BUILDER KIT 17 GRAY
Radian Weapons
MSRP: $1,632.79$1,380.00The 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: $1,632.79$1,380.00