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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SHARPS SHOWDOWN BILLET LOWER
Sharps Bros.
MSRP: $356.19$285.00SHARPS SHOWDOWN BILLET LOWERMANUFACTURER: Sharps Bros.MPN: SHRPSBLR11MODEL: ShowdownAction: Semi-automaticFinish: AnodizedCaliber: MultiType: Stripped Lower ReceiverColor: BlackMSRP: $356.19$285.00 -
MAGNUM SWITCHBOLT 22LR RECEIVER
Magnum Research
MSRP: $407.81$327.00The SwitchBolt is born of extensive research and development, tested and perfected on the professional speed shooting circuit. Built in the USA, the SwitchBolt receivers, with integral Picatinny rail, are machined from a 6061-T6 forging, then hard coat...MSRP: $407.81$327.00 -
FMK AR15 POLYMER LOWER RECEIVER BLUE
FMK Firearms
MSRP: $55.93$40.00Manufactured in the USA of a high impact proprietary composite polymer. This state of the art polymer allows for superior strength, unmatched durability and is extremely lightweight. The Ar1 eXtreme is by far the strongest composite polymer lower on the...MSRP: $55.93$40.00 -
FMK AR15 POLYMER LOWER RECEIVER BLK
FMK Firearms
MSRP: $44.79$33.00This state of the art polymer allows for superior strength, unmatched durability and is extremely lightweight at only 4.3oz. The AR1 extreme is by far the strongest composite polymer lower on the market today.MANUFACTURER: FMK FirearmsMPN: FMKGAR1EMODEL:...MSRP: $44.79$33.00 -
FMK AR15 POLYMER LOWER RECEIVER FDE
FMK Firearms
MSRP: $44.79$33.00Manufactured in the USA of a high impact proprietary composite polymer. This state of the art polymer allows for superior strength, unmatched durability and is extremely lightweight. The Ar1 eXtreme is by far the strongest composite polymer lower on the...MSRP: $44.79$33.00 -
FAXON RECEIVER KIT FOR 10/22 BLK
Faxon Firearms
MSRP: $238.28$171.00The Faxon 10/22 Receiver Kit provides a quick and easy upgrade of your Ruger 10/22, or serves as the cornerstone for your next 10/22 rifle build. Faxon 10/22 Receivers are compatible with all Ruger OEM 10/22 non-takedown components, all Faxon Rimfire...MSRP: $238.28$171.00 -
DBST STAR-15 STRIPPED LOWER AR15
Doublestar Corp.
MSRP: $132.99$95.00Doublestar Corp. makes high quality firearm components for the AR Platform. This stripped lower is the perfect base for your next custom AR build.MANUFACTURER: Doublestar Corp.MPN: DSCL101MODEL: Stripped LowerAction: Semi-automaticFinish:...MSRP: $132.99$95.00 -
BOOTLEG SMUGGLER AMBI LOWER BLK
Bootleg
MSRP: $324.94$260.00Machined out of 7075 Billet aluminum and designed to match their newly released Upper Receiver, The Smuggler is their exciting first step into Lower receivers. Weighing in at 9.85 ounces and MIL-SPEC Hard Anodized this lower receiver will stand the test...MSRP: $324.94$260.00 -
BALLISTIC ENHCD AR 15 LOWER RCVR
Ballistic Advantage
MSRP: $195.99$140.00The Ballistic Advantage AR15 Enhanced Lower Receiver delivers billet aesthetics in a forged package. This custom designed enhanced forging is machined from 7075-T6 Aluminum and compatible with all mil-spec AR15 parts. Aside from the visual upgrades this...MSRP: $195.99$140.00 -
Out of stock
AERO M4E1 STRIPPED LOWER FDE
Aero Precision
MSRP: $223.99$160.00The M4E1 Lower Receiver delivers billet aesthetics in a forged package. This custom designed enhanced forging is machined from 7075-T6 Aluminum and compatible with all mil-spec AR15 parts. Aside from the visual upgrades this custom engineered design...MSRP: $223.99$160.00 -
PWS RATCHET LCK CASTLE NUT/END PLATE
Primary Weapons Systems
MSRP: $55.93$40.00The Ratchet Lock Castle Nut End Plate set works with mil-spec OR commercial buffer tubes and eliminates the need for staking. A quick upgrade to any rifle build, the Ratchet Lock Castle Nut End Plate features a QD mount and easy installation with any...MSRP: $55.93$40.00 -
WILSON BBL SBR 556NATO 11.3 STS
Wilson Combat
MSRP: $311.19$262.00Nearly two decades of building the finest custom tactical AR-15 rifles have given us the insight to develop a comprehensive line of stainless steel, match grade barrels that offer superior accuracy, reliability and longevity for your next custom AR rifle...MSRP: $311.19$262.00