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 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: -
Out of stock
FIGHT MCR DUAL FD UPR 556 PIC 12.5
FightLite
MSRP: $6,666.99$5,900.00The groundbreaking MCR (Mission Configurable Rifle) belt-fed upper receiver assembly is designed to interchange with standard AR/M4 type uppers and readily fits any MIL-Spec lower receiver without permanent modification to the host lower, and is rearward...MSRP: $6,666.99$5,900.00 -
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 -
Out of stock
DD MK18 URG UPPER 556 10.3 MK18 FDE
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 -
Out of stock
DD BBL ASSY 5.56 1-7 CHF 14.5 GOV M
Daniel Defense
MSRP: $422.50$338.00Cold Hammer Forging of barrels has been known for decades to produce the most accurate, longest lasting rifle barrels obtainable. The Cold Hammer Forging of barrels is accomplished through intense hydraulic pressure applied at opposing angles by carbide...MSRP: $422.50$338.00 -
Out of stock
DD BBL ASSY 5.56 1-7 CHF 11.5 GOV C
Daniel Defense
MSRP: $422.50$338.00Cold Hammer Forging of barrels has been known for decades to produce the most accurate, longest lasting rifle barrels obtainable. The Cold Hammer Forging of barrels is accomplished through intense hydraulic pressure applied at opposing angles by carbide...MSRP: $422.50$338.00 -
Out of stock
DD BBL ASSY 5.56 1-7 CHF 10.3 CARB
Daniel Defense
MSRP: $422.50$338.00Cold Hammer Forging of barrels has been known for decades to produce the most accurate, longest lasting rifle barrels obtainable. The Cold Hammer Forging of barrels is accomplished through intense hydraulic pressure applied at opposing angles by carbide...MSRP: $422.50$338.00