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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BALLISTIC BA ENHCD AR 15 UPPR RCVR
Ballistic Advantage
MSRP: $175.00$160.00AR15 Assembled Upper Receiver. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil-spec M16/M4 specifications and features M4 feedramps.MANUFACTURER: Ballistic AdvantageMPN: BAPA100084MODEL: 0Finish: AnodizedFit: AR-15Type:...MSRP: $175.00$160.00 -
AERO M5 AR10 ASSEMBLED UPPER KDK BRN
Aero Precision
MSRP: $180.00$155.00The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big...MSRP: $180.00$155.00 -
AERO M5 AR10 ASSEMBLED UPPER FDE
Aero Precision
MSRP: $235.00$210.00The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big...MSRP: $235.00$210.00 -
AERO M5 AR10 ASSEMBLED UPPER BLACK
Aero Precision
MSRP: $180.00$155.00The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big...MSRP: $180.00$155.00 -
AERO AR15 ASSEMBLED UPPER BLACK
Aero Precision
MSRP: $140.00$125.00Manufacturing a great receiver isn't just about what the end product looks like. It's about what it feels like, how it works, how it handles and performs. Aero Precision products have been recognized across the country by members of the military and law...MSRP: $140.00$125.00 -
SPIKE S 556NATO UPPER 16 CHF/FSP
Spike's Tactical
MSRP: $700.00$630.00Spikes complete upper assemblies will arrive to you inspected, tested, and ready to drop-in and go to work. Spikes maintains the same high standard of tolerances and attention to detail as the uppers they use for complete rifle builds. Every built upper...MSRP: $700.00$630.00 -
SPIKE S 556NATO M4 LE UPPER W/RAIL
Spike's Tactical
MSRP: $826.00$744.00Spikes complete upper assemblies will arrive to you inspected, tested, and ready to drop-in and go to work. Spikes maintains the same high standard of tolerances and attention to detail as the uppers they use for complete rifle builds. Every built upper...MSRP: $826.00$744.00 -
SPIKE S 556 UPPER 14.5 PB RAIL/DYN
Spike's Tactical
MSRP: $1,006.00$906.00Spikes complete upper assemblies will arrive to you inspected, tested, and ready to drop-in and go to work. Spikes maintains the same high standard of tolerances and attention to detail as the uppers they use for complete rifle builds. Every built upper...MSRP: $1,006.00$906.00 -
SOLGW PATROL SL 16 5.56 FSB URG
Sons of Liberty Gun Works
MSRP: $700.00$665.00Sons of Liberty Gun Works believes in Quality Mil-Spec or better parts. They believe there is no substitute for quality and that your gun should be built right the first time, ready for hard use right out of the box. They believe a quality, accurate and...MSRP: $700.00$665.00 -
SOLGW E INDIA KIT V2 5.56 16 BLK
Sons of Liberty Gun Works
MSRP: $500.00$475.00The East India Starter Kit is a building block for any build you wish to do. Properly assembled with a USGI barrel nut, this is a great way to finish assembling your own upper without having to know how to install a barrel and gas block.MANUFACTURER:...MSRP: $500.00$475.00 -
SOLGW E INDIA KIT V2 5.56 13.7 BLK
Sons of Liberty Gun Works
MSRP: $500.00$475.00The East India Starter Kit is a building block for any build you wish to do. Properly assembled with a USGI barrel nut, this is a great way to finish assembling your own upper without having to know how to install a barrel and gas block.MANUFACTURER:...MSRP: $500.00$475.00 -
SOLGW L89 BS V2 5.56 13.7 HUX BLK
Sons of Liberty Gun Works
MSRP: $1,375.00$1,307.00The L89BS (Broadsword) uppers include 7-sided L89 rails with Titanium barrel nuts and integral QD cups, BROADSWORD upper receivers, 4150CMV barrels, low profile gas blocks, and include the muzzle device. Bolt Carrier Groups and Charging Handles are NOT...MSRP: $1,375.00$1,307.00