Lower Receivers
Gas & Brass Armory offers a full selection of AR-15 lower receivers in Brandon, FL—perfect for your next rifle build or upgrade. Choose from trusted brands like Aero Precision, Anderson, BCM, and more. Whether you're looking for stripped lowers for a custom build or complete lowers ready to pin on your upper, we have durable, mil-spec components to fit your needs. Visit us in-store or shop online with confidence.
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Out of stock
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 -
Out of stock
FMK AR15 POLYMER LOWER RECEIVER BB
FMK Firearms
MSRP: $44.79$32.00Manufactured 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$32.00 -
Out of stock
FMK AR15 POLYMER LOWER RECEIVER FDE
FMK Firearms
MSRP: $44.79$32.00Manufactured 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$32.00 -
Out of stock
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 -
CMMG LOWER SUB-ASSY MK9 BLK
CMMG
MSRP: $227.78$0.00As CMMG's oldest 9mm platform, the Mk9 is continuing to go through changes to become even better than before. Introducing, the new and improved Mk9, now utilizing CMMG's patented Radial Delayed Blowback operating system. Radial Delayed Blowback...MSRP: $227.78$0.00Qty in Cart: 0Quantity:Price:MSRP: $227.78$0.00Subtotal: -
CMMG LOWER ASSY MK3 308WN BLK
CMMG
MSRP: $421.86$0.00Based off the popular high pattern LR-308, the tried-and-true Mk3 line is designed to handle larger calibers unsuitable for the AR-15 platform like .308 Win or 6.5 Creedmoor.MANUFACTURER: CMMGMPN: 38CA2AC-ABMODEL: MK3Action: Semi-automaticFinish:...MSRP: $421.86$0.00Qty in Cart: 0Quantity:Price:MSRP: $421.86$0.00Subtotal: -
BCM LOWER GROUP W/MILSPEC M4 STOCK
Bravo Company
MSRP: $493.75$0.00BCM rifles and carbines are some of the highest quality modern sporting rifles on the market today. Whether it's competition, defense, hunting or duty, BCM offers a rifle for the task at hand.MANUFACTURER: Bravo CompanyMPN: LRG-STK-M4MODEL:...MSRP: $493.75$0.00Qty in Cart: 0Quantity:Price:MSRP: $493.75$0.00Subtotal: -
Out of stock
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 -
Out of stock
BAD WORKHORSE LOWER RECEIVER BLK
Battle Arms Development
MSRP: $175.00$125.00Battle Arms Development, Inc. (B.A.D. Inc.) is a design, research, and development firm incorporated in 2009 with a focus on small arms design including firearm components, tools, gauges, accessories, and complete weapon systems. Their Workhorse lower...MSRP: $175.00$125.00 -
Out of stock
BAD XIPHOS LOWER RECEIVER 9MM GLK
Battle Arms Development
MSRP: $298.75$239.00BATTLEARMS XIPHOS Dedicated Lower Receiver. Uses GLOCK Magazines - Small Frame Glock Calibers. Is not compatible with CMMG Delayed Blowback systems that use an AR Style magazine and Bolt Carrier Group.MANUFACTURER: Battle Arms DevelopmentMPN:...MSRP: $298.75$239.00 -
Out of stock
BALLISTIC BA10 308 LOWER RECEIVER
Ballistic Advantage
MSRP: $262.49$210.00High quality components and precise manufacturing make Ballistic Advantage firearms ideal for both new shooters and experienced gun owners. The durability, reliability and excellent build quality will ensure years of service you can count on. The...MSRP: $262.49$210.00 -
Out of stock
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