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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LANTAC UTP UPPER 223 WYLDE 11.5 BLK
LanTac USA LLC
MSRP: $1,310.79$0.00The LA-SF15 UTP (Urban Tactical Pistol) URG (Upper Receiver Group) is built to top quality standards and assembled by expert armorers. Each URG undergoes a shot test at Lantac's facility and is backed by a lifetime warranty against defects. The LA-SF15...MSRP: $1,310.79$0.00Qty in Cart: 0Quantity:Price:MSRP: $1,310.79$0.00Subtotal: -
LANTAC PPD UPPER 300 BLACKOUT 7.5
LanTac USA LLC
MSRP: $1,265.59$0.00The LA-SF15 PDP URG (Upper Receiver Group) is built to the highest quality standards and assembled by a skilled team of armorers. Each URG undergoes a shot test at Lantac's facility and includes a lifetime warranty against defects. The LA-SF15 URG...MSRP: $1,265.59$0.00Qty in Cart: 0Quantity:Price:MSRP: $1,265.59$0.00Subtotal: -
LANTAC PDP UPPER 223 WYLDE 7.5 BLK
LanTac USA LLC
MSRP: $1,265.59$0.00The LA-SF15 PDP URG (Upper Receiver Group) is built to the highest quality standards and assembled by a skilled team of armorers. Each URG undergoes a shot test at Lantac's facility and includes a lifetime warranty against defects. The LA-SF15 URG...MSRP: $1,265.59$0.00Qty in Cart: 0Quantity:Price:MSRP: $1,265.59$0.00Subtotal: -
KAK BBL M16 556 MID 13.9
KAK Industry
MSRP: $149.95$0.00KAK Industry was founded and incorporated in 2011 by Kurt Kosman to address a gap in the firearms market for quality, American-Made components at affordable, sustainable prices.MANUFACTURER: KAK IndustryMPN: 121-0212-014MODEL: ProBarrel Length: 13...MSRP: $149.95$0.00Qty in Cart: 0Quantity:Price:MSRP: $149.95$0.00Subtotal: -
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$1,479.00With 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$1,479.00 -
Out of stock
GE URG-I NC 556NATO 10.3 BLK/DDC
Geissele Automatics
MSRP: $1,671.27$1,479.00With 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$1,479.00 -
Out of stock
GE SUPER DUTY MOD1 5.56 12.5 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 -
Out of stock
GE SUPER DUTY MOD1 5.56 12.5 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 -
Out of stock
GE SUPER DUTY MOD1 5.56 10.3 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 -
Out of stock
GE SUPER DUTY MOD1 5.56 10.3 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 -
Out of stock
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