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
BAD 10.5 UPR WRKHORSE 556AMBI C BLK
Battle Arms Development
MSRP: $758.98$660.00The WORKHORSE complete upper receiver is purpose-built around the forged WORKHORSE 7075-T6 aircraft-grade aluminum receiver and free-float rail handguard with M-LOK attachment point at 3, 6, and 9 o'clock positions. At 12 o'clock is a full-length...MSRP: $758.98$660.00 -
Out of stock
BAD 10.5 UPPR WRKHORSE 556 AMBI BLK
Battle Arms Development
MSRP: $758.98$660.00The WORKHORSE complete upper receiver is purpose-built around the forged WORKHORSE 7075-T6 aircraft-grade aluminum receiver and free-float rail handguard with M-LOK attachment point at 3, 6, and 9 o'clock positions. At 12 o'clock is a full-length...MSRP: $758.98$660.00 -
Out of stock
BAD 10.5 UPPR AUTH ELITE 556 C BLK
Battle Arms Development
MSRP: $941.85$819.00The heart of the BAD Authority Elite upper receiver is the billet BAD556 7075-T6 aircraft grade aluminum receiver with integral ambidextrous controls and free-float rail handguard with M-LOK attachment points at 3, 6, and 9 o'clock positions. At 12...MSRP: $941.85$819.00 -
Out of stock
BAD WORKHRSE 556 UPPR 10.5 BLK N/BCG
Battle Arms Development
MSRP: $624.99$500.00Established in 2009, Battle Arms Development, Inc. (B.A.D. Inc.) stands as a distinguished force in the realm of small arms innovation. Nestled in the heart of Henderson, Nevada, their company is driven by a relentless commitment to pushing the...MSRP: $624.99$500.00 -
Out of stock
ANGSTADT CMPLT UPPR 9MM 6 SUP RDY
Angstadt Arms
MSRP: $776.24$675.00Angstadt Arms complete upper receiver assembly is ready to run out of the box with a sound suppressor! This pistol upper features a 9mm 3-lug muzzle brake, Blastwave blast shield and Radian Weapons Ambidextrous charging handle. Compatible with any 9mm...MSRP: $776.24$675.00 -
Out of stock
AERO M4E1-T UPPER 300BLK 8 FDE
Aero Precision
MSRP: $655.49$570.00This complete upper includes the ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. The proprietary ATLAS...MSRP: $655.49$570.00 -
Out of stock
AERO M4E1-T UPPER 300BLK 8 BLK
Aero Precision
MSRP: $615.24$535.00This complete upper includes the ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. The proprietary ATLAS...MSRP: $615.24$535.00 -
Out of stock
AERO M4E1-T UPPER 5.56 10.5 FDE
Aero Precision
MSRP: $655.49$570.00This complete upper includes the ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. The proprietary ATLAS...MSRP: $655.49$570.00 -
Out of stock
AERO M4E1-T UPPER 5.56 10.5 BLK
Aero Precision
MSRP: $615.24$535.00This complete upper includes the ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. The proprietary ATLAS...MSRP: $615.24$535.00 -
Out of stock
AERO M4E1-T UPPER 5.56 14.5 FDE
Aero Precision
MSRP: $701.49$610.00This AR15 Complete Upper features a 14.5" 5.56 MId-Length Barrel with low profile gas block and 12.7" M-LOK Rail.MANUFACTURER: Aero PrecisionMPN: APAR700714M5MODEL: M4E1-TType of Barrel: 01:07:00Barrel Length: 14.5"Finish: AnodizedFit: AR-15Caliber: 223...MSRP: $701.49$610.00 -
Out of stock
AERO M4E1-T UPPER 5.56 14.5 BLK
Aero Precision
MSRP: $661.24$575.00This AR15 Complete Upper features a 14.5" 5.56 MId-Length Barrel with low profile gas block and 12.7" M-LOK Rail.MANUFACTURER: Aero PrecisionMPN: APAR700704M5MODEL: M4E1-TType of Barrel: 01:07:00Barrel Length: 14.5"Finish: AnodizedFit: AR-15Caliber: 223...MSRP: $661.24$575.00 -
Out of stock
FIGHT SCR RAIDER LOWER 223/556 BLK
FightLite
MSRP: $742.89$646.00Now you can assemble your own custom, rifle caliber - pistol powerhouse with the SCR Pistol Lower Receiver Assembly! Includes everything that's needed; simply add your choice of AR/M4 upper, magazine, bolt and firing pin and you've got it made with no...MSRP: $742.89$646.00