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
NOVESKE BARREL 300BLK 10.5 SS
Noveske
MSRP: $421.34$338.00Noveske's 300 AAC BLACKOUT is designed to run optimally firing both subsonic suppressed and supersonic unsuppressed. This barrel is tuned to lock back on the last round using subsonic 220 and 208 grain ammunition with a sound suppressor. The firearm may...MSRP: $421.34$338.00 -
Out of stock
DD BBL ASSY 5.56 1-7 CHF 14.5 GOV M
Daniel Defense
MSRP: $422.50$348.00Cold 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$348.00 -
Out of stock
CMMG BBL BCG KIT 5 9MM 4140CM SBN
CMMG
MSRP: $476.69$358.00The CMMG 5" 9MM MkGs Barrel and BCG Kit allow you to build a Pistol Caliber Carbine using their patent-pending Radial Delayed Blowback System. Unlike typical direct blowback systems, their RDB uses a bolt that rotates and unlocks, slowing the BCG. This...MSRP: $476.69$358.00 -
Out of stock
CMMG BBL AND BCG KIT 8 5.7X28MM
CMMG
MSRP: $482.99$413.00The 8" 5.7x28mm Barrel and BCG Kit is perfect for building an AR pistol or SBR in 5.7x28mm using CMMG's patented Radial Delayed Blowback operating system. Unlike typical direct blowback systems, Radial Delayed Blowback not only reduces the weight in your...MSRP: $482.99$413.00 -
Out of stock
CMMG BBL AND BCG KIT 5 5.7X28MM
CMMG
MSRP: $476.69$392.00The 5" 5.7x28mm Barrel and BCG Kit is perfect for building an AR pistol or SBR in 5.7x28mm using CMMG's patented Radial Delayed Blowback operating system. Unlike typical direct blowback systems, Radial Delayed Blowback not only reduces the weight in your...MSRP: $476.69$392.00 -
Out of stock
AERO CMPLT UPPER 5.56 10.5 MOE BLK
Aero Precision
MSRP: $487.49$390.00This AR15 Complete Upper features a 10.5" 5.56 Carbine Barrel with Pinned FSB and Magpul MOE M-LOK SL Carbine Handguard.MANUFACTURER: Aero PrecisionMPN: APAR502505M3MODEL: AR-15 Complete UpperType of Barrel: 01:07:00Barrel Length: 10.5"Finish:...MSRP: $487.49$390.00 -
Out of stock
AERO CMPLT UPPER 5.56 10.5 MOE FDE
Aero Precision
MSRP: $487.49$390.00This AR15 Complete Upper features a 10.5" 5.56 Carbine Barrel with Pinned FSB and Magpul MOE M-LOK SL Carbine Handguard.MANUFACTURER: Aero PrecisionMPN: APAR502506M3MODEL: AR-15 Complete UpperType of Barrel: 01:07:00Barrel Length: 10.5"Finish:...MSRP: $487.49$390.00 -
Out of stock
LWRC ADVANCED DI BCG 6.8SPC
LWRC
MSRP: $428.75$353.00The Advanced Direct Impingement Bolt Carrier Group offers superior performance, increased reliability, and longer part replacement life cycles than the MIL-STD components. These gains are achieved through LWRCI's design technology paired with...MSRP: $428.75$353.00 -
Out of stock
BAD 556 AR15 BCG TITANIUM ARMORTI
Battle Arms Development
MSRP: $493.75$415.00The best just got better! From the inventors of the very first fully modular, patented, ambidextrous safety selector for the AR-15 platform, Battle Arms Development is raising the bar on reliability and compatibility of hard-use MSR components...MSRP: $493.75$415.00 -
Out of stock
SAMSON STAR SIG 556 3-HOLE RFL BLK
Samson Manufacturing Corp.
MSRP: $430.61$365.00Samson STAR SIG 556 handguards are a two-piece free-float design that is easy to install. Lightweight aluminum construction, features Picatinny rails at the 3, 6 and 9 o'clock positions. Fits the Sig Sauer 556, 556 Classic and 556R. Will not fit the Xi...MSRP: $430.61$365.00 -
Out of stock
SOLGW 13.75 L89 M-LOK HNDGRD TI BLK
Sons of Liberty Gun Works
MSRP: $498.75$399.00The revolutionary, patent-pending Drivelock design in collaboration with Icon Defense, uses three independent wedges that interface with the angular grooves in their proprietary barrel nut. This system clamps the rail onto the steel barrel nut with...MSRP: $498.75$399.00 -
Out of stock
Q QSERT HANDGUARD THE FIX 15
Q
$425.00This Handguard is compatible with The Fix by Q which utilizes the Q SERT mounting solution.MANUFACTURER: QMPN: ACC-FIX-HG-QSERT-15.25MODEL: QSERT HANDGUARDDescription: Q SERTFinish: AnodizedFit: Q FixSize: 15"Type: HandguardColor: Gray$425.00