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
RADIAN BUILDER KIT 15.5 OD GREEN
Radian Weapons
MSRP: $1,581.94$1,337.00The 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$1,337.00 -
Out of stock
RADIAN UPPER 10.5 223 WYLDE FDE
Radian Weapons
MSRP: $2,152.59$1,905.00The 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: $2,152.59$1,905.00 -
Out of stock
RADIAN UPPER 10.5 223 WYLDE BROWN
Radian Weapons
MSRP: $2,152.59$1,905.00The 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: $2,152.59$1,905.00 -
Out of stock
PWS MK114 MOD 2-M UPR 14.5 223WYLDE
Primary Weapons Systems
MSRP: $1,468.94$1,400.00The PWS MK1 MOD 2-M line, revamped for 2018, features the PWS long stroke piston system. While the internals remain the same as other PWS lines, the MK1 MOD 2-M offers a variety of features exclusive to this line. Starting with patent pending PicLok...MSRP: $1,468.94$1,400.00 -
Out of stock
HK UPPER MR556A4 5.56 11 BLK
HK
MSRP: $2,462.27$2,179.00The MR556 upper receiver kit has been updated to include all the new A4 features, including new barrel profile, adjustable gas block, handguard and more. This kit includes a complete upper receiver/barrel assembly, allowing Mil-Spec 5.56mm AR-style...MSRP: $2,462.27$2,179.00 -
Out of stock
GE URG-I NC 556NATO 11.5 BLK/DDC
Geissele Automatics
MSRP: $1,671.27$1,525.00With the advent of the USASOC URGI, that quintessentially American silhouette has changed forever. The Geissele Super Modular Rail MK 16 handguard, hammer forged barrel, and carbine gas system work in concert for a package that delivers measurable...MSRP: $1,671.27$1,525.00 -
Out of stock
GE URG-I NC 556NATO 10.3 BLK/DDC
Geissele Automatics
MSRP: $1,671.27$1,525.00With the advent of the USASOC URGI, that quintessentially American silhouette has changed forever. The Geissele Super Modular Rail MK 16 handguard, hammer forged barrel, and carbine gas system work in concert for a package that delivers measurable...MSRP: $1,671.27$1,525.00 -
Out of stock
GE SUPER DUTY MOD1 5.56 12.5 URG DDC
Geissele Automatics
MSRP: $1,625.17$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...MSRP: $1,625.17$1,450.00 -
Out of stock
GE SUPER DUTY MOD1 5.56 12.5 URG BLK
Geissele Automatics
MSRP: $1,452.28$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...MSRP: $1,452.28$1,325.00 -
Out of stock
GE SUPER DUTY MOD1 5.56 10.3 URG DDC
Geissele Automatics
MSRP: $1,625.17$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...MSRP: $1,625.17$1,450.00 -
Out of stock
GE SUPER DUTY MOD1 5.56 10.3 URG BLK
Geissele Automatics
MSRP: $1,452.28$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...MSRP: $1,452.28$1,325.00 -
Out of stock
GE SUPER DUTY MOD1 5.56 11.5 URG DDC
Geissele Automatics
MSRP: $1,625.17$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...MSRP: $1,625.17$1,450.00