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 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
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 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 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 -
FN BBL ASSEMBLY SCAR 17S 13
FN America
MSRP: $1,693.87$0.00The FN SCAR barrel assemblies are cold hammer-forged, chrome-lined MIL-SPEC steel barrels with front sight assembly, gas block assembly, gas regulator, gas piston and flash hider installed. Available in short lengths for reduced weight, fast handling and...MSRP: $1,693.87$0.00Qty in Cart: 0Quantity:Price:MSRP: $1,693.87$0.00Subtotal: -
FN BBL ASSEMBLY SCAR 16S 10
FN America
MSRP: $1,467.87$0.00The FN SCAR barrel assemblies are cold hammer-forged, chrome-lined MIL-SPEC steel barrels with front sight assembly, gas block assembly, gas regulator, gas piston and flash hider installed. Available in short lengths for reduced weight, fast handling and...MSRP: $1,467.87$0.00Qty in Cart: 0Quantity:Price:MSRP: $1,467.87$0.00Subtotal: -
FAXON ARAK-21 7.62X39 12.5 UPPER
Faxon Firearms
MSRP: $1,056.94$0.00The ARAK-21 is a gas piston actuated, complete upper receiver assembly designed to seamlessly interface with the standard AR-15 platform. The total extent of the interface is simply the take down pin, and the pivot pin. The new ARAK-21 upper receiver...MSRP: $1,056.94$0.00Qty in Cart: 0Quantity:Price:MSRP: $1,056.94$0.00Subtotal: -
FAXON ARAK-21 556NATO 12.5 UPPER
Faxon Firearms
MSRP: $1,056.94$0.00The ARAK-21 is a gas piston actuated, complete upper receiver assembly designed to seamlessly interface with the standard AR-15 platform. The total extent of the interface is simply the take down pin, and the pivot pin. The new ARAK-21 upper receiver...MSRP: $1,056.94$0.00Qty in Cart: 0Quantity:Price:MSRP: $1,056.94$0.00Subtotal: -
Out of stock
FAXON MATCH BBL 300BLK 9 GNNR BLK
Faxon Firearms
MSRP: $238.28$180.00The Gunner profile is a blend of two of the best performing profiles of all time, Gov't and Pencil. Faxon's Gunner profile combines the durability of the Gov't profile with the weight savings and maneuverability of the Pencil profile. The Gunner profile...MSRP: $238.28$180.00 -
Out of stock
FAXON DUTY BBL 556NATO 10.5 PENCIL
Faxon Firearms
MSRP: $212.52$161.00Manufactured in-house at Faxon, these barrels are fully stress relieved, air-gauge tested, and 11 degree target crowned to ensure superior accuracy. Quality is imbued into Faxon's barrels from the start. They start with the best materials, either...MSRP: $212.52$161.00