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
LANTAC RAVEN BLLT SIDE CHRGR RECVER
LanTac USA LLC
MSRP: $569.23$456.00Utilizing the USC Upper Side Charging Receiver in combination with the LA-N15 Raven lower this perfectly matched billet receiver set is ideal for new rifle builds in multi calibers. Packed full of features including a broached internally flared magwell,...MSRP: $569.23$456.00 -
Out of stock
LANTAC RAVEN BILLET RECEIVER SET BLK
LanTac USA LLC
MSRP: $614.99$492.00Machined from certified 7075-T6 Aluminum and Type 3 Hardcoat Anodized Class2, Deep Black, the matched billet receiver sets are manufactured to the highest quality standards with excellent fit between parts.MANUFACTURER: LanTac USA LLCMPN:...MSRP: $614.99$492.00 -
Out of stock
GGP AR15 BILLET RCVR SET W/15 HG BK
Grey Ghost Precision
MSRP: $618.93$539.00Now you can start your next AR build right with the GGP MKII Billet AR-15 Builder's Set! Includes a GGP MKII Billet Receiver Set, GGP MKII 15 inch Handguard. MKII Billet Receiver Set: The MKII Billet receiver set brings a new level of customizability...MSRP: $618.93$539.00 -
Out of stock
GGP AR15 BILLET RCVR SET SNIPER GRY
Grey Ghost Precision
MSRP: $458.85$368.00The new MKII version of the GGP-P Series brings a new level of customizability never before seen in the rifle receivers. Not only can you build your own version of the Heavy or Light rifle, but you can use your favorite aftermarket parts to complete the...MSRP: $458.85$368.00 -
Out of stock
FORTIS LICENSE GEN II AR15 SET STD
Fortis Manufacturing Inc.
MSRP: $498.69$399.00Introducing the Fortis License Lower Receiver. Made from 7075 T6 billet aluminum. The GEN II has all the same features from the first edition, but with added integrated carbon fiber.MANUFACTURER: Fortis Manufacturing, Inc.MPN: LM-7075-GEN2-SMODEL:...MSRP: $498.69$399.00 -
Out of stock
FORTIS LICENSE GEN II AR15 SET AMBI
Fortis Manufacturing Inc.
MSRP: $516.50$414.00Introducing the Fortis License Lower Receiver. Made from 7075 T6 billet aluminum. The GEN II has all the same features from the first edition, but with added integrated carbon fiber.MANUFACTURER: Fortis Manufacturing, Inc.MPN: LM-7075-GEN2-AMODEL:...MSRP: $516.50$414.00 -
Out of stock
CMMG LOWER ASSY MK3 308WN BLK
CMMG
MSRP: $421.86$338.00Based 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$338.00 -
Out of stock
BCM LOWER GROUP W/MILSPEC M4 STOCK
Bravo Company
MSRP: $493.75$395.00BCM 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$395.00 -
Out of stock
BAD WORKHORSE COMPLETE LOWR B5 STOCK
Battle Arms Development
MSRP: $462.49$370.00This complete WORKHORSE Rifle Lower with B5 Systems Bravo Stock is fully assembled and ready for your rifle upper.MANUFACTURER: Battle Arms DevelopmentMPN: WH-LR-R-B5MODEL: WorkhorseAction: Semi-automaticFinish: AnodizedCaliber: MultiType: Complete Lower...MSRP: $462.49$370.00 -
Out of stock
AM DEF UIC STRPPD LOWER RECEIVER BLK
American Defense Mfg.
MSRP: $498.75$399.00The UIC billet 7075-T6 AR-15 Pattern strip lower receiver is outfitted with their proprietary Ambidextrous magazine release, Ambidextrous bolt catch/ release lever, and their dimpled take down and pivot pins. Also includes an installed milspec magazine...MSRP: $498.75$399.00 -
Out of stock
AERO M4E1 PRO COMP LOWER CARBINE BRN
Aero Precision
MSRP: $599.99$480.00The M4E1 PRO Lower Receiver seamlessly integrates ambidextrous controls into the M4E1 Lower that allows for the shooter to easily operate the bolt catch, magazine release, and safety without modifying their dominant firing hand.MANUFACTURER: Aero...MSRP: $599.99$480.00 -
Out of stock
AERO M4E1 PRO COMP LOWER CARBINE ODG
Aero Precision
MSRP: $599.99$480.00The M4E1 PRO Lower Receiver seamlessly integrates ambidextrous controls into the M4E1 Lower that allows for the shooter to easily operate the bolt catch, magazine release, and safety without modifying their dominant firing hand.MANUFACTURER: Aero...MSRP: $599.99$480.00