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
BOOTLEG 5.56 NITRIDE BCG COMPLETE
Bootleg
MSRP: $153.93$110.00Machined from 4140, Nitride Coating, MIL-SPEC configuration, Staked MIL-SPEC Gas Key, M16 Style.MANUFACTURER: BootlegMPN: BP-C15-BCGMODEL: 0Description: Bolt Carrier GroupType: Bolt Carrier GroupColor: BlackMSRP: $153.93$110.00 -
Out of stock
BAD M4/M16 ENHANCED BCG
Battle Arms Development
MSRP: $265.93$190.00Established 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: $265.93$190.00 -
Out of stock
AERO AR15 6.5GREN BCG W/9310 BLK
Aero Precision
MSRP: $223.99$160.00This high quality bolt carrier group is a valuable addition to your 6.5 Grendel/6mm ARC build.MANUFACTURER: Aero PrecisionMPN: APRH100725CMODEL: Bolt Carrier GroupDescription: 6.5 GrendelFinish: NitrideType: Bolt Carrier GroupColor: BlackMSRP: $223.99$160.00 -
Out of stock
AERO AR15 5.56 PRO SERIES BCG NTRD
Aero Precision
MSRP: $244.99$175.00The Aero Precision PRO 5.56 Bolt Carrier Group is built from the ground up to meet the demands of the most extreme conditions. Each component and manufacturing process of the PRO 5.56 Bolt Carrier Group was deliberately chosen to increase the reliable...MSRP: $244.99$175.00 -
Out of stock
AERO AR15 5.56 BCG W/9310 BLK NTRD
Aero Precision
MSRP: $216.99$155.00This high quality bolt carrier group is a valuable addition to your AR15 build.MANUFACTURER: Aero PrecisionMPN: APRH100615CMODEL: Bolt Carrier GroupDescription: Standard Bolt Carrier GroupType: Bolt Carrier GroupColor: BlackMSRP: $216.99$155.00 -
Out of stock
AERO AR10 308 BCG W/LOGO
Aero Precision
MSRP: $293.74$235.00Aero Precision's .308 / 7.62 Bolt Carrier Group is the perfect firing mechanism for your big-bore rifle build. This high quality BCG features a Black Nitride finish, is MPI/HPT and now includes a laser engraved Aero Precision 'A' logoMANUFACTURER: Aero...MSRP: $293.74$235.00 -
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 -
Out of stock
SPIKE S M4 COMPLETE STOCK KIT ST-T2
Spike's Tactical
MSRP: $157.44$113.00The Spike's Tactical M4 Complete Stock Assembly comes with everything you need to finish off the back end of your AR-15 lower receiver with top notch parts. This kit comes with a 6 position Mil-Spec Buffer Tube, M4 Collapsible Buttstock, Receiver End...MSRP: $157.44$113.00 -
Out of stock
SIG MCX/MPX FOLDING STK MAGPUL SL-K
Sig Sauer
MSRP: $263.06$211.00This assembly includes everything you need to add or replace your MPX or MCX stock with a folding buffer tube and the Magpul SL-K StockMANUFACTURER: Sig SauerMPN: 8900516MODEL: Low Profile Stock AssemblyDescription: FoldingFit: Sig MCX/MPXType:...MSRP: $263.06$211.00 -
Out of stock
SIG MCX/MPX FLDING/TLSCPING STK FDE
Sig Sauer
MSRP: $263.06$211.00Sig Sauer factory replacement collapsible stock assembly installs easily on your MCX, MPX or other platforms with a receiver mounted 1913 rail interface.MANUFACTURER: Sig SauerMPN: STOCK-X-FOLD-TELE-FDEMODEL: 0Description: Folding and TelescopingFit: Sig...MSRP: $263.06$211.00 -
Out of stock
SIG MCX/MPX FLDING/TLSCPING STK BLK
Sig Sauer
MSRP: $263.06$211.00Sig Sauer factory replacement collapsible stock assembly installs easily on your MCX, MPX or other platforms with a receiver mounted 1913 rail interface.MANUFACTURER: Sig SauerMPN: STOCK-X-FOLD-TELE-BLKMODEL: 0Description: Folding and TelescopingFit: Sig...MSRP: $263.06$211.00 -
Out of stock
MAGPUL ACS CARB STK MIL-SPEC GRY
Magpul Industries
MSRP: $126.28$91.00The Magpul ACS (Adaptable Carbine/Storage) - Mil-Spec Model is a drop-in replacement buttstock for AR15/M4 carbines using mil-spec sized receiver extension tubes. Dual, rear accessible, water-resistant battery storage tubes and an integral storage...MSRP: $126.28$91.00